You bring up another thing that annoys the out of me. I hate when I have my kids in the car and pull into a drive thru just to see a huge line. As I decide to go somewhere else, I see a line of cars 5-10 deep of people ALONE! Hey lazy asses, if you're by yourself, get out of the ing car and go inside.
If there's a line of cars 3 deep, I'll get off and go inside when I'm by myself. But it's not worth it to get out, get my 2 and 4 year old out, go inside for 5 minutes and then get back in.
But if you're by yourself, just get out of the damn car. When I do it, 75% of the time, I'm in and out in less time than it would take going through the drive through, and 23% of the time it's the same amount of time, but I waste less gas.
As for the elevator, if I have my kids, I'll do the 1 floor thing (my daughter takes forever to go up stairs because she has to stop and look at EVERYTHING in the stair well). If I'm by myself, I'll take the stairs up to 3 floors (depending on how much of a hurry I'm in).