torrent

Hey, I generally don't keep up with forums but I hope it's okay to jump straight into a question with my first post. I'll freely admit I'm probably a n00b at this stuff but I was wondering of you guys had any opinions on the following scenario... So you're sitting outside shops / restaurants etc. freeloading on the wifi but the signal is weak - short of having to park closer, is there any kind of in-car directional device that would boost someone else's wifi signal?