I added them to the big list. No opinion either way on tracksuit/sweatpants but I'm still supportive of pout. I think some users weren't too keen on the emoji faces though, which is why we have "smile" and "happy" as primary.
I came here to add a few more for consideration though since I've been thinking on it for a while.
Those are "dirndl", "chess", and something to tag paper talismans (like on the heads of zombie girls like Qiqi and Miyako Yoshika. All of these are common enough that they don't really need examples, but:
https://e-shuushuu.net/image/1079360/ (all Qiqi have on head)
https://e-shuushuu.net/image/1077973/ (all Miyako Yoshika)
https://e-shuushuu.net/image/1079359/ (Shenhe's attack where they fly around her)
https://e-shuushuu.net/image/1049738/ (a lot of Sailor Mars)
https://e-shuushuu.net/image/1080107/ (Lelouch's halloween outfit in Re;CODE)
I also think "cosmetics" would be a decent solution to the previous "makeup" suggestion for now (the problem being that some said you can't always tell when characters are wearing it). Rather then worn stuff though, it could be for lipsticks, perfume bottles, powder compacts, etc. There are too many images to list. Makeup would still be separate enough to add later if it were pushed again, but could be for worn makeup instead.
On that note, I'll probably be adding the long-awaited "cowgirl" tag soon once I've finished adding images to some of the others.
Have a good idea? Let us know