My nickname is hanging nut, but my husband's nickname is no more holes in our plaster walls. Our house is 84 years old with 13 inch plaster walls. So after repainting, I decided to buy Command picture hanging strips.We also have 20 grandchildren and each of their picture is hung separately. Then there is a grouping of 6 wedding pictures (our childrens) and a grouping of our children as babies,our wedg.picture and the wedding pctrs of grandparents & great grndprnts.That is just in the family room. The bedroom has even more. They have all been hanging for over 2 years now and I have only had one fall down, and that was because the paper backing on the picture ripped. So easy to do! And my husband is happy.