Caps are available in about a dozen colors. Maybe more. How many combinations do you need?
The crux of the matter was the post about the list I made (see
here) - I was indeed running out of colors.
I do have now 15 different bottle caps (dark green just arrived, and counting 'silver' and 'chrome-ish' as two different ones) and I store actually 17 types of beers and ciders (the two types with just one bottle left in the kitchen fridge not included).
I usually try to match the cap to the style as well. At the moment, however, it is more likely to simply use the next color that becomes available. At this point I'm not willing to brew a style matching the next available color (although this might be an interesting challenge...).
You're actually listing "chocolate stout" and "black IPA" in your signature - I'd say both deserve the black caps...
Why write on the dots just cross reference the cap and dot colour to a separate log.
Touch up pens in different colors or nail polish popped into my mind, but I still like the sticky dots idea. I might just apply them to the styles that will run out first. They will also kinda stick to chilled bottles. Applying varnish to a cold bottle might not be that easy.
Sure, I could just use a dot color code system, no writing.
Then when I give freebies to friends they'll look at them later and say, "Hey! I got 3 red dot and 3 green dot beers!"
Or I could make a color key so they can look 'em up.
I try to finish my bottle labels before I hand beers out, but sometimes I'm just behind schedule with my creative work.
But instead of handwriting, have you thought about
these printable stickers.
If you're using just one color of caps it would at least save some work. If you're using multiple colors, you could order pre-printed stickers with a QR-code linked to an online list. Or still print labels with QR-codes showing the description as text ... or linking to a designed label (I'm getting creative now).
BTW, here's my actual list. just pinned to one of the beer fridges in the basement.
And as an actual task, what I did for beer today: waking up the harvested yeast for a brew day tomorrow and finalizing the recipe I have in mind for a next try getting closer to "THE Summer Ale".