Funny question. I was thinking about this the other day.
I think some guys can relate to this...you're running so much, two a days, maybe core and weight sessions thrown in...you are working out like 20+ times a week...and suddenly yesterdays dried sweaty shorts/shirt seem "what the hell" okay for another go until laundry day.
The classic...all your running clothes are dirty...and you are picking through the laundry basket for the least skanky pair to eek out one more run before doing the laundry.
When I was running 128 miles a week at Oregon (Pre's trail made it very easy) I would wait until my shorts were stiff from a few days of dried sweat, before retiring them to the laundry basket.
...I only had time for class, making massive amounts of mac and cheese with veggies on the side (even used that whole grain/veggie bulk elbow macaronis from the health food store), eating gianormous bowls of organic granola, massive amounts of bananas and apples...and having marathon horizontal sessions with my hot girlfriend...
Ahhh, college.