So, tips for building things that I've learned today:Have some strange piece of hardware that you're trying to take apart? Like that dead cell phone, for its pager motor? I just found the bristlebot project, and it's too cute. Also, I'm home for winter, and all that Highschool-Star left here was a pile of magnet wire, and some electrical tape. Not even a breadboard! (Ah well, thanks highschool-Star, for what stuff is here - Star-of-the-future gets none!).So, without a tiny Torx-6 screwdriver that I'm sure my family would use exactly once (I mean, that I would use exactly once), I drove to the nearest place and - did not buy one.I walked in, unscrewed the screws I needed out, and put it back on the shelf.$15, saved!Also, don't buy batteries at radioshack, ever. 3V coin-cells were the same price as 1.5-volters, and, at $6, all of them cost less than a frappucino at Starbucks. Six dollars! That's around $2 per VOLT, at best! So I left and went to the drugstore where two 3V coincells cost $2. Much better.