I have 2 sets of summer, cotton sheets and 2 sets of flannel for the cold months.

A fellow investor named Vern Darlington, who will probably comment here eventually, hosts a great (free) meetup at the Cotton Patch in temple.

@Jeff Cotton the only thing I would add to what @Bill Gulley said is that you get what you allow.

@Alex Cotton made a good point about not rocking the boat if they are quality tenants.

Again, absent the details of your tenant's personality, I don't see this as an attempt by your tenant to "pull the wool over your eyes" or take advantage of you but rather them keeping a mindful eye on their security deposit.  

Stick to your criteria, and then nobody can pull the wool over your eyes.

Rock Wool is often used in apartment buildings partial for its ability to dampen noise.

You're going to need one or two good heavy oversized cotton T-shirts in gray and white, light colors that can take heavy washing.One basic tool you're sure to need that isn't on your list is a 10 oz. caulking gun.

We use steel wool to fill the holes, then cover the exterior as normal.

Put steel wool in the holes in the wall.