I have used these little guys for decoration for the holidays and around the house.  One thing I learned was that you have to let the sticky tape really adhere to the hook and the wall before you hang anything. The tape smaller size of the hook for whatever reason isn't as adhesive as the larger ones. I also learned that the clear sticky tape isn't as good as the solid white tape. Once I learned all this through trial and error I still buy them and use them. I do recommend them, just give the tape some time.