I took Paul's last name. There were three girls in my own small hometown with the same first and last name as me, so I had no problem changing it. Besides, it made my initails easier to design with - all angles and straight lines now, instead of one curve thrown in. Though I will always be a Peterson in genetics and upbringing, and my old friend still calls me KP, I have been KAW (see how nice those letters work together) for 20 years now!