I'm in the process of cataloging my huge stash of nail polish, and so sometimes have to do marathon sessions of swatching. Not using my fingernails, of course, but some "kiss" brand tips.
I purchased 4 boxes of 100 each and am already on the last box. Either way, here is what my setup looks like. I have to sit next to the open patio door, especially since most of these are old formula polishes.
Funny thing - I was doing this yesterday afternoon when I felt a bit of vertigo. My first thought was "oh no, these fumes are getting to me!". Alas, it wasn't me, it really was the earth moving - an earthquake. Fortunately we felt it just as a rolling motion in our area.
Pretties! Once they're completely dry, I number them and put the number and corresponding polish brand and name in a spreadsheet.
I'm finding that I have a lot of dupes for colors that are currently popular. So now I'll have to check my stash before I'm tempted to make a purchase.
I still have to do this (swatch) for my more recent purchases.