Likely you have a number of the metal or plastic multi drawer storage cabinets full of goodies.
Its a real PITA to have to look thru every drawer to find what is in each drawer.
I tried sticky labels- they fall off after a while, cardboard tags in the front of the drawer- Works OK, but can fall over and you have to try to read it thru the plastic.
So my solution was to hot glue 1 of each item in the drawer to the front of it.
Now I can tell at a glance if its nuts of a certain size, bolts, washers, grommets, etc.
Now if you glue nuts to the front, glue them flat. That way you can try a screw or bolt in them if you are not sure of the size. It can be hard to differentiate SAE from Metric.
Also a small tag in the drawer givins size info cost, supplier, etc. can help a lot.
Again I will repeat the secret to moving the cabinets easily without the drawers falling open.
Just a couple of wraps of stretchy plastic wrap around the cabinet and you are ready to go.
I now carry a small roll of it in my vehicle, so when I G-sale or go to hamfairs and buy a cabinet full of stuff, it doesn't end up all over the seats & floor.