Besides bikes, what kind of alternative transportation do you use?

Every bus in my town has a bike rack that holds two bikes. It's incredibly convenient to be able to count on every bus having a rack. The only problem is that sometimes the rack is full, but that's been rare so far.

I carry a list of taxi numbers in my wallet just in case, but in over two years I've never needed to call one.

I fly on airlines just like everyone else. The only difference is that when I get there I tend to use whatever public transit is available instead of renting a car. There's a learning curve to using bus & rail confidently and it usually takes me only about an hour to figure out how to use the public transit in a city. Most medium size or larger cities usually have some kind of useable system, even if most of the locals don't know about it.