If you have screws or bolts its always a pain to find the right ones, especially if you are asking someone else to fetch them for you. These small labels push fit in the containers of the DeWalt screw boxes. You could glue them in if you wish I have put large pads on the sides to allow for gluing.

Why DeWalt never thought about this problem I don't know. I used a CD-R pen to write with as it is fine and permanent. When putting them on make sure you push the slide all the way down so the label is not level with the top of the container otherwise the lid wont fit.

Use 30%+ fill otherwise they are not strong enough to take a knock.