When I was growing up, we got peanut butter and cheese from the government, we got clothes from older cousins, and went outside and played instead of belonging a gym. 

What isn't safe is putting every dollar into clothes, rims, neighborhoods as a status symbol so the Jones's think you're ok.Bless them. 

Or what about all the pet hair on clothes/furniture.  

That's one reason I don't look down on the people buying shiny new cars, clothes, stuff they don't need on credit cards.

All great insights already here Winn, but if you are able to oversee the painting, there are some ways to help with this often unavoidable turn over expense....For example, this time insist on some high end paint (think specialty paint store or the very best big box stuff); try a pearl or washable finish; I like one color for all the interior of all my units, ideally a white that can hide some imperfections (know and keep the code); this means no color or matching mystery later; then on the next turn over, see if you can't get away with just a wall cleaning; use a damp sponge mop with tsp or a tsp substitute  (and then rinse it with a clean water and a damp sponge mop)..not too much water, just damp.. 

They'll all just tell you they're smoking outside and it must be on their clothes, etc.  

Volunteer for a local non-profit, and not just in the food line or handing out clothes.  

Slightly off topic but if you replace the supply lines of your toilets do not forget to use the braided metal lines on the Clothes Washers.  

My theory is that they might have utilized that room to dry something.. like clothing.

And I'm old enough to realize that even though I don't have anything very fancy, when you look at replacing your furniture and clothing and pots and pans and bedding, let alone your electronics, it sure adds up in a hurry.I have never needed my homeowners or renter's insurance policies, but I would never be without them.