Wardriving as some may know is a term associated with driving around, looking for open wireless networks to get access to the net to, temporarily, or for more decietful activities like wiping peoples file contents, nasty, very nasty.
Anyways, a cool thing, is to buy a wireless camera kit, like the one below, and hook it up to a miniature TV ($20) or a portable DVD players input, then as you drive around on your daily chores, you will start to see cameras popping up on your screen, they could be from laundromats, convenient stores, offices, peoples houses, you name it!
It's really very entertaining, I found my self buring a whole tank of gas one night sniffing out signals, then marking them with a GPS... It's really quite unbelievable really.
www.svat.com -NOPST