They do not stop all the hair, but prevent issues with things like toothpaste caps.

I've never been that worried about a few minor drywall patches, but you could easily let them know it'll be $25 or $30 or something off their deposit when they move out.I prefer not to let tenants "return the property to original condition" after I had a tenant fill several gouges in drywall with toothpaste.

We unlock the apartment during business hours if we are available or they can call a locksmith.Some obvious things that weren't in my lease before, but will be from now on due to one of my tenants:Light bulbs- their responsibility in their unit, have them let you know about bulbs that need to be changed in the common areas.Plumbing-  Suggest running hot water to help clear shaving cream and tooth paste from slow drains, and allow the use of Drano or other drain cleaner if needed.  

Yes there were kids in there and some pit bulls (violation of lease).The kids took tooth paste and wrote all over the walls in their bedroom upstairs and let it dry.

There sre definitey options... if youre going to rent out 10 rooms to people you don't know make sure you know head to toe the cost it will take to run the house monthly and make sure you're putting good people in there cause the last thing you wanna do is be fielding phone calls about how someone stole someone else's toothpaste.  

So does that bathroom pic where it looks like they just kicked open the door and snapped a crooked shot, with the toilet lid up and empty toothpaste tubes on the sink.

I would wait for 2-3 months before making the purchase so you can use the renters money to pay for the entire shipment and analyze their spending trends and see what items they enjoy the most and best prices that would out compete those places. convenience things like toilet paper, tooth paste, tooth brushes, laundry detergent, soap, bounce could be an option, and then you have snacks, cold drinks, phone chargers, etc.

And they told us we wouldn't see another crisis in our lifetimes.But that toothpaste tube can only be squeezed so hard. 

We routinely clean most of our traps once a year to clear them of toothpaste, soap, hair and gunk.  

First--do you supply all of their items like shampoo/conditioner, toothpaste, laundry detergent, etc.?