In order to introduce someone to Babylon 5, show them this:

http://www.imdb.com/title/tt0120711/

I've managed to get four or five people going on the series by showing them that movie.

Star Trek is nice too. :)

I'll suggest showing them the DS9 pilot...*shrug*

I ride a motorcycle and always have a backpack. Most of my keys are in a ring in the backpack. I keep my motorcycle key and my apartment key in my wallet. That is all.