I've said before that I wish there was a way to ration myself a handful of M&Ms or a small serving of something sweet a day. But I can't keep that stuff in the house because when it comes to chocolate, I just don't have enough self-control. So (perhaps sadly), I can get behind the idea of the Chococlock.

Every hour on the hour, the clock offers up a piece of chocolate. You've got 30 seconds to grab it, then it's gone until the next hour. The fatal flaw with this product, however, is the cheat button. Doesn't anyone understand how a chocoholic works? I'd have that cheat button worn out in no time.

Thankfully, there's a free way to keep a handle on overdoing the sweets. Leave them at the store. Studies show that if you leave tempting food in your line of sight, you're far more likely to eat it. When I want a treat, I go out and buy one, but control my cravings by only buying a single serving every time.

How to you keep your cravings for your favorite treats under control?