Nothing puts me in the holiday spirit quite like shopping for presents for my family! I have mom and dad covered (whew!), but still have to shop for plenty of family and friends. Next up in this year's Holiday Gift Guide: my best suggestions for little sisters. In my experience, she's generally impressed and excited by anything I get her, but some thoughtful shopping certainly can't hurt. Here are a few picks for some of the coolest goodies for my favorite geekette-in-training.