These are all problems you have created by over-dependance on a single point of failure.

It's honestly kind of lazy not to take precautions, particularly when it's that easy - you've already listed out exactly what I'd suggest, and it's how people muddled along for decades in the before-times, more or less successfully.

I would suggest learning how to read maps. It's really easy, especially in urban areas. Find the nearest intersection, and look where it is on the map. There you are.