Over-the-door hooks cause damage!
You may think that hanging a hook over your door is a good idea as there is no sticking onto or drilling into the back of doors. However, these over-the-door hooks cause just as much, if not more damage.
They rub between the door and the frame and cause scuffs and scrapes and chips and dents causing damage that will need to be repaired and made good.
If you are a tenant, speak to your landlord/agent before investing in these hanging hooks. The last thing you want is a deduction from your deposit for making damage you were trying to avoid.