Tub showers that have plastic curtains that cling to the body.

Showers that aren't designed properly to drain in the stall.

Sinks that don't have sufficient surround to hold toiletries.

Furniture placement such that the TV can be seen from the bed but not the chair.

Curtains that have a gap when they close, allowing light into the room.

Room air conditioners that cycle on and off. I can't sleep with a room air conditioner due to the noise; I have to turn it off.

Lack of individual temperature controls in the room.

A luggage rack with a back that does not allow a suitcase to be fully opened (such as a Samsonite 26").

Failure to have a lamp by the sofa or chair, thus making it difficult to read.