Anytime I get into a moving vehicle, the first thing I do, after I shut the door, is always fasten the seatbelt. I even fasten it when backing into the garage, where it certainly would do me no good. Never make any exceptions. If I forget it momentarily under stress, I have an automatic reminder that something is wrong, and I'll fasten it. I am subconsciously uncomfortable in trains or buses without a seatbelt.