[@The Elvenqueen]
Admittedly, I usually do have a very specific style in mind for my characters - and some of them do suffer from 'only wears one outfit syndrome' (arguably justified in certain cases) - but I get what you mean. I think the reason some people go for very specific clothing designs, like myself, is probably because they're inspired by works of fiction (anime, games, et cetera) where the character has a sort of 'iconic look'. Even western media has this as a recurrent trope -- you don't see Darth Vader ever taking off that suit of his... Does he ever even wash it? xD

Personally, I like to make my character sheet include the 'trademark' outfit of the character, and then the individual role-play or scene in question can have it mentioned in the IC narrative if they've decided to change up their clothing for a specific situation (wearing a suit at a formal event or a wedding, only dressed in a pair of pajamas for a sleepover, et cetera).

I also like to know little details -- that chain dangling out of my character's pocket actually gives foreshadowing for people when suddenly my character reveals he's been carrying a pocket watch this whole time.