You’ve been painting all day, you’re tired and finally at a good stopping point. Why bother cleaning up all of the paint brushes when you’re just going to drag them back out tomorrow and use them again. Here’s a little trick to keep them from drying out overnight. Wrap each brush tightly with aluminum foil and store at room temperature. You can unwrap them a day or two later and they are still wet and ready to use. Aluminum foil, not just for baking potatoes!