Faucets should be treated gently with normal hand pressure to prevent issues. Turning faucets on and off forcefully can lead to a dripping faucet. this usually indicates that your faucet needs a new washer.
Chrome faucets can be cleaned with vinegar, rubbing alcohol or glass cleaner and a soft cloth.
Use a mild detergent for your lacquered brass faucets and brass cream for exposed brass faucets.
If the lacquer coating on your brass faucets gets scratched, you can prevent your faucet from tarnishing with clear nail polish.
For tarnished brass and copper faucets, use a lemon rind to bring it back to its former glory.
To clean older steel faucets and fittings, you can use a mild scouring powder.