I actually used to hang clings on doors and windows. Marty is correct that a smaller vinyl cling is more desirable because stores didn't want to block the whole door. Also when you walk inside drug stores such as Walgreens, RiteAid, and CVS some have metal stands that look like arches that I used to put sleeves on - there are usually 2 or 3 - if you don't know what I'm talking about I'll take a picture. I think the idea of clings is better because you are seeing it head on. The sleeves you walk by immediately after you enter the door so it has to be an advertisement that really catches your eye.