Happy Earth Day! In honor of today's planetary celebration, The Huffington Post has pulled together everything you could possibly need or want to know about Earth Day.
If you're curious about Earth Day in general, you can check out the official Earth Day site or go here to see the US government's Earth Day page.
If you're a fan of lists, or just looking for some eco-friendly tips and ideas, here are some of our favorites:
7 Energy-Saving Gadgets
10 Ways To Green Up Your Sex Life
16 Ways To Turn Your Business Green
52 Tips For Living Green.
If you prefer to think outside the box, you can check out HuffPost contributor Olivia Zaleski's 10 Things You Shouldn't Do On Earth Day.
Tired of being told what (and what not) to do, and just looking for a reason (and a way) to celebrate? Go here for a calendar of Earth Day events around the world and here to find some great eco-friendly (and alcoholic!) drink choices to celebrate with.
But, if you just can't imagine life without the jet, and think the idea of carbon offsets is so terribly gauche, then try any of these 10 utterly luxurious ways to cut your Jimmy Choo-heeled carbon footprint.
On the other hand, who doesn't like to save money? Here are 7 Earth Day money-saving tips for your home.
Looking for some Earth Day laughs? To see which of your favorite Comic Strips are doing Earth Day features, click here.
Or, better yet, check out the most amazingly hilarious Go-Green video ever made, starring, of course, Will Ferrell, John C. Reilly, and Adam McKay.
Got big plans for Earth Day? Anything we missed? Share your tips below!