The Food Saver, and other appliances like it, allow you to vacuum seal food in a plastic bag. While the bags are somewhat expensive, any Food Saver owner will tell you that the cost is more than made up by the food it saves. Leftovers like lasagna and casserole will no longer become freezer burned, even if left in the freezer indefinitely. If you have dry goods that you are not intending to use anytime soon, such as baking cocoa, spices, or raisins, then you can seal them in a Food Saver bag and keep ...