I would definitely go with a utility cap. 

Housekeepers left it from the previous guests?) 

No one has really balked at that but we do have higher end guests.

The guests have a credit card on file and your policy should allow you to charge for damages or excessive cleaning.

Quote from @Marc Shin: @Andrew Steffens If i lower my price too much will I attract the worst guests? 

I suggest having smart TVs and let them log into their own accounts, preferably with a guest mode so they auto-log out after a certain number of days.For catering to families, I would concentrate on providing amenities like puzzles and games. 

But once I got the bills, I increased the rent with the tenant's approval and signed an addendum to the lease stating the rent increase would be X and the owner would take over utilities.

The PM change the electric utility to the PM's name.

The only time I toss them is when the guests "help" by washing stuff. 

hi all i am a new landlord and got my first rental property. tenants moved in in September and October. the first month was fine but when December hit it got extremely cold and the heating is electric. due to poor insulation in the home that we did not know about the heat has to be turned very high up to keep the home warm, however since everything is electric it is causing the electric bill to be $800. the utilities are the tenants responsibility. however because of this one of the tenants has been extremely non compliant with paying rent.