This is definitely my favorite general adhesive. We call them tabs. I use them to adhere photos to mats and mats to the lay out. I also find when working with kids that this is the best and least expensive adhesive to use. You just pull the strip and one tab pops up. You place the tab where you want it, peel off the blue backing and then place the item on your lay out. I always have a few boxes on hand.
I know that these are "old school" but they are my favorite kind of adhesive. They are easy to use, you can cut them to smaller sizes and they stick. However, one of the most important reasons that I still use them is because they are cheap and EASY for my kids to use! No messy glue or super duper stickiness.
This is my favorite adhesive. I use them to adhere photos to mats most of the time. They are easy to use and I know they won't mess up my photos. You just pull the strip and one pops up. I go through these boxes like crazy!