Freeze!

Freezing food is a great way to save money. Most foods can be frozen, which means you can buy in bulk and save for later. For example, say beef is on sale, you can buy a larger cut of meat than you'll eat at one meal, cut it into pieces, and freeze it to make a meal with it later, even months from now. You can also freeze foods such as bread, berries, and seafood.

Be careful though, there are some foods that do not freeze well. For instance, canned foods, mayo, and eggs in shells don't do well in the freezer.

Want more information? The USDA has instructions and tips on their website.