I have countries or cities for single stickers, and usually apply the memo to that location or if I'm already using locations (big blind or multi) I just apply it as origin of the object.
I haven't been doing this for a long time, so I might change again some time in the future.
I'm currently trying to not practice non blind solving at all which is quite easy because I have no time at all due to several unfortunate reasons just to try not to repeat ever my 8 DNF at euros anytime soon.
I have a lot of ideas and projects focused on blindsolving, I really hope to be able to share it here in a couple of months or so. Meanwhile keep up practicing and doing nice things everybody