If you think installing new carpet is time consuming and complicated, think again. Modular carpet, aka carpet squares, is one of the easiest floor coverings to install. You simply lay the squares on the floor; adhesive strips and the carpet's heavy backing hold them in place. You can finish most rooms in a day, if not an afternoon. And you can use it anywhere. You can add whimsy to a kids' playroom or create an elegant look in a formal dining room.