This is pretty vague as it's so subjective. I'll address this from a general standpoint as housekeeping is pretty much an issue in any audit.
When I start out with a client the first thing I look at is housekeeping as its everywhere. As long as your place is neat and clean you're in good shape.
Consideration is given to the type of operations. Metal working businesses are typically harder to keep 'clean' than those in electronics.
This shouldn't be a toughie for you.