This is the no-punch hook I like to use

I love these for hallway decorating. Each year we put lights up in our hallways and we can attach them to the metal door frames instead of having to use tape, temporary strips, or other things. The clean-up is so simple!

I use these to hold up my calendar, job chart, and letter chart and not a single one has fallen! I also use them to hang items from the ceiling in my classroom!