Buy frozen vegetables so you can take from the package only what you need.
Divide packages of meat into single/smaller serving sizes. (Or just buy one serving at the meat counter)
Use non-fat DRY milk for cooking and baking.
Buy fresh fruit at different stages of ripeness – one yellow banana and one green banana!
The fruit cups, pudding cups and other individually wrapped items may seem more expensive, but they reduce waste, so they may actually SAVE money.
Purchase a premade salad at the deli counter in an amount you are sure to use.
Slice up a ripe banana in to coins and freeze for a quick frozen snack or as an addition to a smoothie.
Muffin tins work well for freezing single servings of soup, chili, and marinara sauce. Freeze the leftovers in the muffin tins; after the muffin pucks are frozen, put them in to a plastic bag for storage. Thaw out one or two pucks as needed.
Make a roast in the crock pot for supper one day, slice it up for sandwiches the next!
OUT OF SIGHT. OUT OF MIND.
Store fresh fruit and vegetables in plain sight, in a bowl on the counter (or front and center in the fridge). You are much more likely to pick up an apple if it catches your eye! A bag of apples may look wonderful, but unless you are planning a pie, just get a couple.