In these financially uncertain times, people look everywhere they can to save money. Many of us even try to save money by cutting our own hair. Making a small investment in a hair trimmer can save a lot of money in the long run. Especially for a large family, a lot of cash is thrown away every month on haircuts. But hair trimmers are easy to use once you get the hang of them. The best hair trimmers are battery operated and rechargeable so you'll have the freedom to move them easily around the head of the person whose hair you are trimming.