Lee Kirk, Jenna Fischer's real-life husband, directed one episode of The Office (S9,E14: Vandalism). In it, Jim is depicted as a slob and a non-ideal roommate.

[u/drguillen13]

[u/jacuzzi_full_of_jizz]

When he has everyone over to his apartment, the apartment is pretty nice and clean looking. Maybe he's the type of dude that only cleans up for an audience or he and Pam grew into some super bad habits together between the BBQ at the apartment and Jim and Daryl rooming together.

[u/washington_breadstix → u/jacuzzi_full_of_jizz]

Inconsistent writing. I think the "Jim is a slob" joke was introduced just for this one episode (where he's roommates with Darryl) and then never referred to again.

[u/Horn_Python → u/washington_breadstix]

maybe darryls the slob

[u/LiterallyaCockroach → u/Horn_Python]

Or maybe it’s his sister, who looks just like him