A kitchen sink can be a breeding ground for harmful bacteria and germs. Instead of reaching for chlorine bleach to disinfect it, use common household ingredients like white vinegar and lemon juice to sanitize your sink. Rub the sink with a cut lemon and spray white vinegar all over the sink, faucet and handles; wait 30 minutes. The high acidity level of both ingredients will kill most household germs and bacteria. Wipe everything clean with a damp towel.