Cleaning Water Stains
Water stains are not exactly harmful, but no one likes dirty walls and mirrors. It can be challenging to remove them all, even when you rub and scrub hard. With WD-40, this would no longer be the case.
Maintaining Fridge Gasket
The fridge gasket is that rubber bit that comes in between the fridge frame and the door. Thanks to its location, icky gunk often collects there. Make it less nasty by cleaning it with a piece of cloth and WD-40.