Protecting Shower Heads
Were you ever so bored that you tried counting how many pores there are on the shower head? We doubt you have but if so, congratulations. If you were that observant, you might be the first to notice when some pores no longer let water pass through! Spray a little WD-40 on your shower head if you want to prevent clogging.
Keeping Your AC Clean
The next piece of advice will be useful for people who are in the pre-installation stage of their AC unit. Sorry, people who already have them in place. Anyway, it might be a good idea to lightly spritz WD-40 on the AC unit before installation. This will prevent the build-up of dust and other particles in the vents.