There are a number of ways to maintain your computer. One way is to find a good utility program for each thing you want to do — remove junk files, clean the Registry, defragment drives in Windows 7 and the like — or you can find a good program that does all the things you need in an easy-to-use suite. This week, Doc going to look at three cool programs that do just that.)

While surfing around the Internet you pick up a lot of useless files. They go into a cache and are supposed to make your Web pages load faster. Whether you use Internet Explorer or Firefox you pick up these files every time you surf. Here's how to get rid of them.