You can't get a lot simpler than the One line clamp lamp by Ora Ito unless you just hang a lightbulb by a string. Even the Inch Lamp is overly complicated compared to this design.

The One Line clamp lamp is a single line that houses a miniature T2 fluorescent light bulb and provides direct fluorescent lighting. You know, the same kind of lighting that is driving you crazy in your cubicle at this very moment, but now it is available for your overly contemporary-designed home!

The downside to overly simple gadgets is always the price. Despite this being merely a light bulb, a small amount of polycarbonate and a cord, the lamp sells for a blistering $545 "on sale." It's also available in table lamp form for $100 more.

One Line clamp, via cribcandy