I HATE shower heads that are too low. Nothing worse than knocking my shoulder or head on the shower head when I'm taking that early morning shower. I'm only 5'10" - there are lots of people taller than me so I know I can't be the only one but this happens more often than not. An easy resolution are the adjustable ones that I often see in Europe.

I also want more plugs in hotel rooms. I want to be able to work on my laptop and have my mobile phone plugged in at the same time. I want a plug near the bed so I can charge the phone over night and use the alarm clock function - I don't want to have to jump across the room to turn off the alarm.

Hair dryers that are attached to the wall but the cord is too short to see yourself in the mirror as you dry. You know that was designed by a man

I also don't want the hairdryer than you have to keep your finger pressed on the button to keep it drying. Makes it hard to style your hair, and my finger gets really tired as I dry my hair.

I don't like hotel doors that don't have chains or other type of deadbolt - it's a safety thing