Clean up spills when they happen. If you’re in a rush or just feeling a little lazy, it can be easy to leave a spill sitting in the fridge. However, things tend to harden and become more difficult to clean the longer they sit, so it’s best to wipe down spills as they happen.
Check for freshness once a week. It may be easiest to do this whenever you buy new groceries. Just quickly check expiration dates, produce, and leftovers, and toss anything that’s gone bad. By making this a habit, you can stop your fridge from becoming cluttered with food you won’t ever eat.
Wipe down the sides of bottles and jars if they drip when you use them. This will prevent liquid from dripping down the bottles and pooling on your kitchen shelves. Plus, it will keep your hands from getting covered in sticky residue every time you pick up the ketchup.