Moderator's note: This topic was originally about the uses of duct tape. Due to the maintenance issues resulting from the use of duct tape, we have changed the title to identify the use of other tape types that will not leave behind adhesive residue. 1: Taping your electrical cord from the room's plug to where you want power so that you are not tripping over it. 2: Sealing the air conditioner vents when you are freezing from the AC running at full throttle. 3: Sealing the air conditioner vent in your neighbor's room when they are freezing and you are not. (This will allow the car attendant to leave the AC on.) 4: Taping the door curtains closed since most of the Velcro fasteners are no longer there. (Unless you like putting on a show.) 5: Taping the window curtains closed when you want to get some sleep or don't want to put on a show at the next stop. 6: Taping the toilet seat to the wall so that it will stay up. Guys, the seat seldom stays up when traveling at 50+ mph and you need to go. Your traveling companion will appreciate this little trick since it gives them a dry place to sit. (Cut a longer piece of tape that you think you need, place one end on the wall, fold the other end over a couple of times, like you do when you want to make double-sided tape, this will give you a handle to pull that end off the seat when you need to lower it. 7: Taping the dividing door between two-deluxe bedrooms so that they will not rattle all night. 8: Taping anything that likes to rattle so you can get to sleep. 9: For those of you who toss and turn in your sleep, taping the sheets on bottom bed to the mattress so they will stay tucked in. 10: When you leave your room and you want to keep your door close, put some duct tape on it. 11. When a sleeper car starts your trip frozen with snow on the roof you might find water coming in through the vents. I have used duct tape to tape a towel over the vents to catch the water. Ok, I am only up to 11 , but I sure that there are many more reasons. Please add your suggestions to this list.