Happy Earth Day! We’ve pulled together our favorite fun, eco-friendly activities so you and your friends can spread the love to Mama Earth during this global celebration.

Get Dirty
Plants not only beautify our world, but also release oxygen into the atmosphere. So dig up a little dirt and get your gals together for some gardening! Have some small clay pots, potting soil, gardening tools, seed packets and water on hand. (If you really want to get creative, decorate your pots with craft paints or decoupage, and let the pots dry before planting anything in them.) Each girl gets to take her project home and give it plenty of love and sunshine until it sprouts and is ready to be transferred to the ground.

Get Clean
Have a spa party -- no chemicals or aerosols allowed! You can get beautiful using only all-natural products and organic ingredients. Have everyone wash their faces with a homemade scrub: In a bowl, stir equal parts oatmeal and brown sugar with a dab of safflower oil, if you have it. (Hint: Have hair ties handy!) Thoroughly rinse your faces, and then apply a honey-and-almond-oil facial mask, made of 1 tablespoon honey and two to three drops of almond oil. Leave the mask on for up to 15 minutes.

Everyone can also make their own bath salts to take home. Mix Epsom, kosher, rock or sea salts with a few drops of essential oil, and add food coloring. Experiment with different colors and scents (lavender is perfect for de-stressing), then layer in glass mason jars with lids. For a relaxing bath, add a scoop to running water in the tub.

Get Organized
Organize a school clothing drive, giving gently worn items to charitable organizations. Keep in mind that every donated item does not have to be fit for a fashion show. We met up with Jackie King of the Secondary Materials and Recycled Textiles Association (SMART), and she tells us that worn-out shoes, belts, purses, stuffed animals, books, sheets, towels, socks and even underwear (freshly laundered, please!) can be recycled into materials such as insulation. Ask school officials if you can set up collection bins, then visit SMARTASN.org, click on “Contact Us” and punch in your zip code to find a recycling location near you.

Get Crafty
Have a craft party using supplies that might otherwise get tossed in the trash. SMART posts Cool Craft Wednesday each week on its Facebook and Twitter pages, featuring super-fun recycling projects.

One of our favorites is this no-sew recycled T-shirt bag:

1. Cut the sleeves and neckline off of an old T-shirt. The hole at the top of the shirt will now be the opening of your tote, and holes where the sleeves were will form handles at the shoulders.

2. Use the scraps to cut a long strip of material to be used as a drawstring.

3. Cut a slit to make a small opening at the hemline. (Be careful: Don’t cut past the hem!) Attach a safety pin to the end of your drawstring and pull it through one side of the hemline opening to the other.

4. Pull the drawstring cord until the opening is gathered and closed up, and tie to secure. This is the bottom of your totally awesome new T-shirt bag!

Are you desperately in need of advice? You could always bounce it off your BFF. Or your mom. Or your guidance counselor. Or … yourself! Here, we show you some tried-and-true techniques for following your own heart.

TAP INTO YOUR INTUITION: GUT-CHECK TIME

The Sitch: Your cousin is running with the wrong crowd, and she’s invited you to go to the mall with her and the crew this weekend. You miss your cuz; the two of you always have so much fun together! But you didn’t get such a good vibe from these kids the first time you met them.

Check Yourself: No need to answer your cousin on the fly! Thank her for the invite and tell her you’ll get back to her. Then take some quiet time to sort it all out. Sit down, close your eyes, still your mind and feel your truth. Would you like to give her friends a chance, or are you just not getting a good vibe about the whole thing? Follow that hunch.

TAP INTO YOUR INTUITION: WALK IT OFF

The Sitch: You were going after a starter position for the soccer team. You doubled up on practices and worked really hard, but you didn’t make the cut for first string. Coach is offering you a choice: second string for the super-competitive team or captain of intramurals.

Check Yourself: Decision-making can be challenging, especially when a ton of emotions are swirling around the issue. Instead of going into a woe-is-me fit, take a stroll. That’s right, a good walk can help you release negative feelings and shift your mood. Better? Once you’re centered, weigh the issue. Captain or second string? You can’t go wrong either way when it’s all about playing your game and having fun!

TAP INTO YOUR INTUITION: WRITE AWAY!

The Sitch: Your school’s mean girl has posted some pretty snide remarks about you on Facebook. It’s nothing major, but it’s clear she’s trying to rub you. And it’s working; you’re steamed! Ugh, everyone is texting you about it. You want to handle this without creating more drama, but how?

Check Yourself: If you’re looking for a specific answer here, sorry, not happening. Learning to read your intuition is about solving your own problems, especially in situations as sticky as this. When life gets complicated, it’s time to grab your journal and get writing. It’s OK to plan fantasy schemes of revenge, but once you’re done venting that bad juju, jot down as many amicable real-life solutions as possible.

TAP INTO YOUR INTUITION: CATCH YOUR DREAMS

The Sitch: Your two best friends are spatting, and you’re stuck in the middle. And you feel like you and your BF are drifting apart. Oh, and your parents are turning a bedroom into an office and making you double up with your sister. Plus, you’ve got exams coming up! Seems like it can’t get any worse.

Check yourself: Ruh-roh! When things pile on at once, do not go into freak-out mode. Give it a rest, literally, by solving problems in your sleep. Your dreams can be like a whisper from a trusted friend: your subconscious. Decoding your dreams provides clues to cracking your life’s little mysteries.

Sure, sometimes a boy is too cute to resist. And, yeah, we’ve all fallen for a fellah at least once. But when it comes to boys, is it always love at first sight? Answer the following Q’s to see if you need to slow down the crush craze:

If you really want to spread the Valentine’s Day love, make a gift that comes from the heart! We have awesome craft ideas for your bundle of beloveds, right here:

Valentine’s Craft for the BFFs: Pretty Pink-painted Tees
Make personalized tees for your besties!

• What you need:

Plain white T-shirts or tanks (tip: you can buy these in multi-packs in the boys’ underwear section)
Piece of cardboard
Fabric paint pens or permanent colored markers

• What to do:

Put newspaper down on your work surface, then fit the T-shirt onto the cardboard so the front of the shirt is flat and facing you. Now draw whatever your, er, heart desires! Use pinks, purples and reds to make swirly patterns, polka dots, flowers or whatever. If you really want to be fancy, you can also sew on a few sequin accents. Don’t forget to make one for yourself!

Valentine’s Craft for Mom: Movin’ Groovin’ Love Mobile
Create a whirling whimsical hanging mobile for your mom ... or aunt or grandma

• What you need:

Construction paper
Playing cards (preferably an oldie with a few cards missing)
Glitter
Glue
Coat hanger
Fishing line, yarn or string
Beads, loose earrings or other baubles (optional)

• What to do:

Cut out heart shapes from colored construction paper or any other decorative paper (such as sturdy wrapping paper or sheet music). Punch holes at the tops of the Queen and King of Hearts from an old deck of cards. Break out the glue and glitter to decorate your heart shapes. Now flex your imagination! Use various lengths of string to tie your creations along the bottom of the coat hanger, adding any beads or other adornments until you’ve achieved mobile magic.

Valentine’s Craft for a Boy: Hunks and Chunks o’ Chocolate
Whether you have a BF or a crush, you can’t go wrong by giving a boy food! Really ...

• What you need:

Milk chocolate bars or semisweet chocolate chips
Microwaveable glass bowl
Baking pan lined with parchment paper
Spatula
Nuts and dried fruits (such as raisins or cranberries)

• What to do:

Put the chocolate in a bowl (if you’re using bars, break them into pieces first). Place in the microwave on high, stirring at 30-second intervals until melted. Pour the melted chocolate into the pan lined with parchment paper, using the spatula to spread it out to about 1/8- to 1/4-inch thickness. Sprinkle the fruit and nut toppings into chocolate and gently press them in. Place the pan in the freezer to set for approximately a half hour. Once it’s hardened, break the chocolate into chunks and put them in a nice box or tin. Store in a cool place before giving them to your guy. Mmm ... chocolate-flavored kisses!

Photo: @iStockphoto.com/DS011

It usually hits when you’re washing off the last of your sparkly New Year’s Eve makeup: the post-holidays slump. You’re staring down gray, icy weather minus all the fun, festive celebrations. Luckily, these pick-me-ups are proven to raise the temps on your mood thermometer -- stat!

Bundle Up
It’s important to get outside -- yep, even in cold temps -- to keep feel-good vibes flowing. Nature can definitely amp up your mood, but the key is to move while you’re outdoors. Even just walking around for five minutes works! So make snow angels with your sis or take Fido for his walk. By the time you step back inside, you’ll feel better.

LOL -- A Lot!
Good news: YouTube is good for more than just wasting time. Its hilarious clips can leave you ROFL, and research shows that laughter’s an awesome way to get in a good mood fast. We know what you’re thinking: “Duh!” But here’s the thing: You have to get to “this is so funny I can’t not laugh” territory. So search for your favorite “iCarly” clips and watch, laugh, repeat!

Hit the Mall
New research proves shopping is an easy way to feel happier fast. (So that’s why they call it retail therapy!) Bonus: The study found that pulling out your wallet when you’re feeling blue doesn’t necessarily make you buy tons of stuff you’ll later regret. Try this: Get a couple of besties to come with and have fun trying out crazy outfits you know you’d never really wear on a day-to-day basis. It’s cheap and it’s a blast!

Strike a Pose
Yoga is one of the best ways to get your chillax on, according to studies. There are tons of inexpensive DVDs available to walk you through the basics, and on-demand TV often offers them for free. Work on your tree pose and you’ll feel more blissful faster than you can say, “Ommm.”

Lend a Hand
Volunteering not only helps someone else out, but also gives you a boost. Surveys show that people who give to others typically have happier lives. First, find something you’re into. Love planning parties? Use those super organizing skills to kick a can drive into gear. Is amazing cupcake-making your thing? Whip some up and have a bake sale for charity. Are you practically the dog whisperer? Clock quality time at your local animal shelter. Just don’t blame us when you have a smile plastered on your face afterward!