Most people don't buy life insurance online, but it's a good place to do some comparison shopping. Just enter your state, birthday, height, weight and whether you smoke (you don't have to provide your name and address unless you apply for a policy). Then answer some questions ranging from your blood pressure to whether you work for an airline. Next, decide how much coverage you would like. If you don't know, there's a convenient tool to help you estimate. Then click a button and the site will compare rates from a number of different life insurers. You also can get quotes on health and auto insurance.