I've never needed a passport. I've never been outside of the lower 48 states. Things have changed. I want to tour around the U.S. and Canada on the motorcycle, and twice I've been invited to motorcycle into Mexico but declined both times.
This week I took the plunge and applied for a passport and wallet card. You only need a wallet card to travel to/from Canada and Mexico by land. There isn't any reason why I should be declined so I should receive them in 4 or 5 weeks.