This comes from the always useful site, Lifehacker. Many of us travel frequently on business. Most of us have left our cell phone charger behind when checking out of a hotel at least once. Here is the trick to keep your charger from being left behind.
When you get to the hotel, unpack your suitcase and place it next to a wall outlet. Plug in your charger and wrap the cord around the suitcase handle. Leave it there for the duration of your visit. When you go to grab your bag, it won’t be possible to leave your charger behind. It’s like putting your car keys on top of something you don’t want to forget when you leave the house.