Bike repair is a good one. But we gotta remember in the near future, cars will still around and not everyone is healthy enough to ride a bike.
If it's a life or death situation such as a volcanic eruption I'm gonna repair or hotwire a car get to safety. I'm not going to rely on my crappy health and a slow bike to get away.
@intherain You want to diversify your knowledge in case you have to use something. The apocalypse isn't going to be ideal. People won't be able to stay in a specific location all the time. Sometimes, you may have to flee in a hurry.