In Europe, I hate the idea that you have to put the room key in that little slot too turn on the lights. Which I always forget to take.

And who thought of these ideas for switches? One switch seems to turn on two lamps on opposite corners of the room, and two outlets no where near those lamps. But the outlet near the lamp is controlled by a switch on the other side of the room. except for that one lamp that you have yet to figure out how to turn off, since it is not controlled by ANY switch!

Oh, and airport waiting areas - why are the seats long rows - people don't sit right next to each other - I like it when they cluster them in groups.