I know, I’m talking all crazy! Air is good! Well, yes. Air is good for us. To breathe. It turns out that air in your food leads to decay, so when you’re talking about food, air = bad.

Today (May 19th, 2010) only, you can buy the FoodSaver FreshSaver Handheld Vacuum System for 70% off the usual price. And it’s exactly what it sounds like—a little vacuum doohickey designed to work with these other components and remove the air from your food containers, to keep your food fresher for longer.

The kit includes the vacuum, charging stand, two plastic deli containers, and 10 bags. It’s normally $29.99, but use coupon code E0FV70FS today and that’ll knock it down to $9, so even after paying shipping you’re still getting it for around $15 (half the regular price).

If you’ve ever known the heartbreak of throwing away perfectly good food because your family didn’t eat it quickly enough, this may be worth checking out. Trust me, watching all the air get sucked out is even more satisfying than the Tupperware “burp.” (Okay, in writing that, I realized I’m maybe a little too invested in food storage.)