Don't give up on things like strawberries that go bad quickly, just eat them first
I generally only shop once a week and I eat my strawberries and bananas the first few days of the week, then save the longer lasting fruits like apples, oranges, and blueberries for the later part of the week. If something is starting to look questionable before you get to eat it, freeze it. It just requires a little planning and paying attention to what you need to eat before it goes bad.