Do you have any hobbies that might actully be useful in a world overrun by zombies? You may not have even thought of any of them being useful...
I hunt and fish. So I can gather my own food, and handle a firearm.
I play paintball, so I know how to handle various situations that involve being sneaky, and or being ready to attack.
I just got into R/C cars. I could mount a small remote camera onto a car, and scout out a place before I move in.