There seemed to be a lot of interest in my use of a CircuitWriter pen in my "Smallest arduino board?" thread, so now that I've figured out how to get decent pictures of the work it does, I thought I'd give it its own thread. Here are some pictures of what I've done with it. As you can see, it's not always pretty, but it's cleaner than soldering jumper wires.
Oh, and pardon my lousy soldering.
and v2:


A [/url=Arduino Playground - Programmer2]Programmer2[/url] board:
My arduino-based robot:

A sparkfun FTDI Basic Breakout 3.3v modified for 5v (before they added the 5v version, with the solder jumper I suggested):
And a Sparkfun breadboard power supply modified to add unregulated output: