Save or convert your documents to a format that will work with different program first (that is, a program that you intend to keep) 2. Archive them onto a floppy disk, flash drive, or CD-ROM 3. Proceed with a program like CleanSweep. Using CleanSweep or any other similar type of utility could delete anywhere from less than a megabyte of hard drive space to over five megabytes and up. And we're going to predict that homes will become less cluttered with stacks of paper and that our natural resources will flourish as a result of it. This all sounds fine and dandy of course, but if you're not computer savvy, you're going to feel a little lost once the choice has past and the revolution is 100% complete. If you can remember that there are hoards of alternatives to costly commercial software (and you make the effort to get it), you'll discover that you can keep up with the rest of the computer industry at a significantly cheaper cost than if you attempted to pay your way down the software aisle. Software piracy just isn't the answer. A firewall is software that checks all data entering and exiting a computer and it then blocks that which doesn't meet specified security criteria (user-defined rules).1 5. Don't click on website links in spam messages. In an effort to obtain personal information, some spammers will send email that asks you to click on a link. Some of the more popular ones are Windows Vista, Mac OS X, ZETA, IBM, Unix, and Linux. But even still, operating systems have extended onto to non-computer devices such as game consoles, portable music players, and PDAs. Regardless of the device, the operating system installed onto it serves the same purpose across the board: to enable user-to-hardware communication. Sit files don't install software - they merely archive a collection of them into one, or they significantly reduce the size of a larger one. Decompressing Files Assuming that you have Winzip or StuffIt installed on your computer, you can access the files archived inside a .zip or .sit file by simply double-clicking the archive (a file ending in a .