Zombie apocalypse tip #2: Double tap. If you aren't familiar with this term, basically MAKE SURE THE DAMN THING IS DEAD! You can spare a few bullets for one less zombie to deal with.
Zombie apocalypse tip #1: wear denim. A jacket and jeans with some good steel-toe boots. Can kick some heads in and denim is really really hard to puncture. (This will become a regular thing, you have been warned)