1) When I arrive, the first thing I do is iron my clothes. Invariably the iron cord doesn't reach the ONE available outlet in the room, so I've taken to travelling with an extension cord.
2) I'm a Canadian who travels to the USA, and I don't have that many cellular roaming minutes, so I often use the hotel room phone. These days it's rarely on the desk (it's bed-side), so I also travel with a CAT5 extension cable so I can move the phone to the desk.