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/SuzCoffeeBean]

Did anyone else find that plot line clunky? Jim suddenly the slob roommate & Darryl getting upset about his coffee mug? Like they tried to write an odd couple thing but it seemed weirdly out of character for them both. Forced.

[u/thekyledavid → u/SuzCoffeeBean]

We never really see either of them at home, so I feel like it’s not really “out of character” if we have nothing to compare it to

Besides, Jim apparently has a record of leaving his stuff on Dwight’s desk, and he used Andy’s mug for coffee instead of bringing his own or using a disposable cup, so I can believe he’s not that concerned with respecting other people’s stuff. And that’s not even getting into how often he messes with other people’s stuff for the sake of pranks.

[u/knallpilzv2 → u/thekyledavid]

This episode always makes me think of how Pam was surprised Jim used fabric softener in that one episode. And how Jim reacted to that. As if the show wanted to tell us how non-slobby Jim was.

[u/pinto_bean13 → u/knallpilzv2]

I think that was more because “guys don’t use fabric softener”. She’d been with Roy for years, and just from purely guessing with what little info we had about their at home relationship, I’d guess she did the laundry 90% of the time. The other 10%, Roy (cos “lazy manly man” or whatever) probably didn’t bother with fabric softener, so she was shocked that Jim would.

[u/knallpilzv2 → u/pinto_bean13]

Exactly. I always thought that was supposed to make the point Jim isn't the average male American slob Roy probably is. Which he sort of is when roommates with Darryl.