Pretty slick. I use those for my AM and PM pills also.
For fastener and small object storage I use some similar, but a migrant from storage for my fly fishing flies for Alaska. I also have taken to buying in quantity, boxes of 100 usually, mostly when I am ordering online (which I do a lot, given my location). When I go into a store, I'm usually on a mission and while I have no proof, I do have the sense that I'm paying more for a box in a store than I do online. I almost always order these sorts of things from McMaster-Carr.
I've had a box of "floor sweepings" from some sort of assembly shop from sometime in the 1950s or 60s. I brought it with me when I moved from Calif. to Ore. in 1975 and when I moved to NE Ore. in 2016. I've always thought it would be good to sort them, but never had a good way to store them. Then recently, I started using the divider boxes for the stuff I've been accumulating. I have had a need for occupying my time in a brainless manner, so the last few nights, as I'm waiting to get sleepy, I've been sorting those floor sweepings. Small screws, washers, nuts (from size 1 - 10) and quite a few little "oddities". These are they.
These are the others in which the recent acquisitions reside.
A couple months ago I posted about "Finessing Dado Slots to 6mm) as part of an effort to make some storage racks for these storage boxes. I have not progressed in completing those racks. My granddaughter started storing her mini-Legos in these divider boxes and I made some shelves for the "workbench" where she plays with the Legos. That meant I had to order more boxes. And other stuff has just gotten in the way.