I wanted to hang wreaths on all my windows at Christmas. I live in a two story old farmhouse with alot of windows. I was real skeptical about hanging my wreaths on the second story because they had lights on them. I live in Pennsylvania where we get blowing snow storms. The tempeture had gotten as cold as -20. I thought for sure the hooks would freeze off the windows. I have never used the Command hooks and was pleasently surprised when after Christmas I had to pull the sticky tab to get my hook off!!! I AM HOOKED!!!!!!