Saving money, time, and resources, while minimizing your carbon footprint is your main focus right now. And it's all about the clear nail polish: use it to preempt household calamities. Coat the base of any metal that comes into contact with wet surfaces (e. G. Shaving cream cans). The lacquer will create a barrier against moisture, saving your lovely porcelain from nasty (oftentimes permanent) rust stains.