If you are a busy person on the go, you should understand the importance of staying well hydrated. If you do, you should buy a few cheap water bottles to keep handy. It can be expensive to constantly stop in to convenience stores to buy small bottles of water anytime you feel the need for a drink. Buy you can either buy a large bottle of water, or prepare purified water at home. Then, pour the water into a cheap water bottle and take it with you wherever you go. You'll be glad you got an extra cheap water bottle when you see how much money you have saved.