Cleaning Piano Keys
Dirty-looking pianos do not have anything going for them. Do you think that it adds character? Maybe, but we do not think it is worth it! Besides, it will be hard to keep playing on a dirty piano. Keep the keys clean by spraying WD-40 on a cloth and then wiping them off.

Cleaning Piano Keys
Preventing Mildew Growth On Fountain
Not a lot of people own fountains, but this one will help you out in case you do. Water usually run through them the entire day, so mildew is common. Turn the water off and spray the surface with WD-40 to stop this from happening.

Preventing Mildew Growth On Fountain