In case you haven’t heard, December 21st may just be your last day on Earth, at least if you take an ancient Mayan text at its word. What if you wake up on a fine winter morning and find that things just aren't right, that the world is gradually crashing in on itself, while CNN shows chunks of the planet flying off into the atmosphere?

Would you sit and be calm and at peace with yourself? Spend time with your family? If you’re like many people, you’d probably try to find time for one more thing as well: To get it on - and good. I can’t say for sure whether the world’s really coming to an end; perhaps we’ll all just wake up the next morning a little worse for wear. But just in case, it’s time to get on top of having the best sex ever. After all, what’ve you got to lose? (For a wilder ride, check out Beyond Plain Vanilla: 8 New Things to Learn in the Bedroom.)

Get a Sex Toy

OK, so some of you will think this is a pretty tame suggestion, but hear me out. According to statistics from sex toy and adult novelty retailer Adam & Eve, only 44 percent of women between the ages of 18 and 60 have used a sex toy. That's more than you might have guessed, but it still means that more than half of you aren’t getting the most out of your sex life. There's even some evidence that women who masturbate (with or without sex toys) report experiencing more frequent orgasms and enjoying greater sexual satisfaction with their partners than those who don't. But sex toys like a cute little tidbit from the very popular Lelo line, or one of the many iterations of the famed "rabbit" can make that alone time a lot more fun! How can you expect your partner to figure out the magic combination that makes you come if you aren’t familiar with it yourself?

I couldn’t find any comparable statistics about sex toys for men, but there’s no need for the guys to feel left out: There are plenty of sex toys on the market for you too. Sure, maybe you’ve been masturbating since before you even heard your first dick joke, but that doesn’t mean you don’t still have a few things to learn.

Find your (or your partner’s) G-spot

The G-spot has become the holy grail of female pleasure, both for women and their partners. For years, the clitoris was considered the only trigger for female orgasm (at least officially). Then in 1950, a physician by the name of Ernst Grafenberg found a mysterious patch of pleasure-producing tissue hidden within the vagina. (Learn more about women's pleasure points in 10 Things You Don't Know About Vaginas.)

Stimulating this spot produces a very different kind of female orgasm, and may even cause the fabled female ejaculation in some women. You or your partner can explore this area manually (you’ll find this spongy tissue on the front wall of the vagina), in positions such as doggie style or woman on top. Or, try out a G-spot vibrator (there are models for both men and women). And yes, men have a G-spot to. It's essentially the prostate and can be sitmulated anally.

This is one of the most intense orgasms out there, so whether you go on this quest on your own or with your partner, it will be rewarding - for both of you!

Indulge a Fantasy

When "Fifty Shades of Grey" began reaching a climax point (in terms of sales - what did you think I was getting at?), the New York Post reported that hardware stores in the New York City area were actually selling out of rope. And it wasn’t Boy Scouts who were buying - it was women, legions of them. As it turned out, a lot of ladies were just dying to be tied down by their partners; "Fifty Shades" just gave them inspiration they needed to actually do it!

If you can’t share your deepest, darkest sexual desires with a trusted sexual partner, you’ll probably never be truly satisfied in the sack. So, whether you’re longing for sexy lingerie, hankering to be hog-tied or breathless about trying a little BDSM, bring it up with your partner and work on incorporating it into your repertoire. For women especially, fantasy is half the fun - don’t leave it out! (Read up on one common fantasy in Why Bondage Can Be So Much Fun.)

Indulge Your Partner’s Fantasy

Now here’s the thing about sexual fantasies: They’re all about give and take. Come to think of it, that’s a prerequisite for any healthy sexual relationship. If you’re going to unload about your sexual quirks to your partner and expect him or her to fulfill your every desire, you’ll have to be willing to do the same. I’m not saying you should feel pressured to do everything your partner wants if you aren't comfortable with it, but you do have to be open to expanding your comfort zone. That isn’t always easy, but with some good communication, you’ll be glad you did. (Find out how to indulge a particular male fantasy in A Lady's Guy to the Gentleman's Club.)

Go the Whole Nine Yards

Be honest: Sometimes you just go through the motions. That’s OK. Life isn’t pornography, and you can’t have the best sex of your life every day. But when you have the time, it really pays to go all out for your partner. Get dressed up (or down!), set the stage and make an event out of giving each other pleasure. This one luxury that's worth indulging in regularly ... or at least before the world as we know it ceases to exist.

Try Anal Sex

When it comes to anal sex, there appear to be two distinct camps. That means that right now a portion of you are going ewwwww, while the rest of you are thinking ooooohhhhh yeaaah. That’s cool. I get it. But I’m throwing this one in because according to a study about oral sex that appeared in the Journal of Sexual Medicine in 2010, more women than ever are on the receiving end of it. And so are guys. Straight guys.

What I’m getting at here is that anal sex just isn’t that taboo anymore. If it's something that piques your interest, bring it up with your partner. If there's any day to go out and live your own porno, this may just be it. (Get some background on bootie sex in What You Need to Know About Anal Sex.)

Spice Things Up

If you really believe you’re approaching your last day on Earth, chances are any old romp will blow your mind in an apocalyptic kind of way. But I’ll bet that many people would take a stab at something brand new, something that pushed their boundaries a little, because we’d all feel like we had nothing to lose, right? If you a have a partner you trust, though, that’s probably already truer than you think. So let's just say the world keeps on turning, despite all the doomsday prophecies. The worst that can happen is that you get a chance at a few more sexual adventures.