Installing a new kitchen sink is an easy, one-day project that can do wonders for the look of your kitchen. As an added benefit, you can increase your sink's utility by installing a unit more suited for your needs. You could, for example, replace a single bowl unit with a double bowl unit. Or, you could install a modern decorator sink. In any case, the time when you replace your sink is also a good time to consider replacing your faucet and installing a garbage disposer unit, since these projects go hand in hand.