Like most people who spend a good deal of time in front of their computer—whether for work, school, or play—I jump back and forth from window to window, working and playing with different things at the same time to get my work done faster or procrastinate harder. One thing I like to keep available at all times while I work is a small window playing a video, either because it's essential to what I'm doing or because I simply want to be entertained. Usually I just crop my web browser window...