Keeping Out Excess Moisture from your Sleeping Bag
When you are out camping, you will find out that moisture builds because of friction and sweat.
Avoid sleeping in a wet sleeping bag by slipping in a long strip of tin foil underneath you as you sleep.
Roller Pan Liners
Paint rollers are tough to clean. This is the reason people turn to disposable plastic liners now.
Tinfoil is a great alternative. Not only is it cheap, but it will also save you time.