Screen real estate seems to be getting less expensive by the day. I recently bought a pair of 24-inch LCD monitors for a very affordable price, whereas a few years ago I could only dream of having such a setup. On the other end of the spectrum, more and more people are toting tiny netbooks with 10-inch displays. But no matter the size of your Windows desktop, you can get more out of it with the help of free and low-cost tools.