One of the biggest office offenders is piles of paper -- on your desk, on your shelves, and eventually on your floor. It's easy to get busy and start stacking papers to file for later, but before you know it, you have a task that's too big to tackle. The key is to process papers as you go. Set up a system of trays or file folders that are clearly labeled and make it a habit to use them. The same goes for your computer desktop.