As much as I love having fresh strawberries or blueberries with breakfast, they're not the most affordable fruits, and they go bad pretty quickly. To avoid spending too much money on fruit and skip the risk of wasting it, I like to stock up on apples at the beginning of the week. While they're only in season August through November, they're usually available all year round, and I'm totally OK with that. Plus, apples are full of fiber, so they help keep you fuller longer.