Most lamps come with short cords that not only ugly up your office, but don't always reach the wall without an equally ugly extension cord. Save yourself the mess by making your lamp cordless.
Weblog View Along the Way explains how to turn any lamp into a cordless light source, by replacing the light bulb with a string of low-power LEDs and running them off a 9V battery. It's a pretty cheap project, with the parts coming in under $20, and it only requires a bit of soldering to get it done. Of course, you could always buy a cordless LED lamp too, but if you have a lamp you particularly like, this will work with just about anything. Hit the link to see a full step-by-step guide.