Unless your main character has OCD, everyone has an area they habitually leave in a mess. Mine is my desk. Really, any surface I can pile books and file folders on. The lie I tell myself is that the stack will catch my attention so I can follow up, but the truth is that every stack starts to looks alike and I dread digging in. My mess shows that I’m a literary, writerly, bookish kind of person, with lots of bills to pay and things half-written.
I know women whose mess area is the closet, not because they don’t care but because there’s an overwhelm of clothes and accessories in there, and in their case it might be a glorious, visually lively mess. For some, it’s the pocket. For others, the purse. I know many kitchen mess cooks, who glory in throwing food and dirty implements around, leaving a kitchen like a tornado had cooked in it after just frying a couple of eggs.
What’s your character’s mess are? Or stark lack of messes? It will say a lot about him or her if you can describe the mess-making and mess recognition moments.