Tenant is responsible for paying for consumption beyond this and will be billed separately." 

I went for the SEER 16 models and not that it helps you so to speak, but the electrical consumption goes way down.https://www.duke-energy.com/home/products/smart-sa...

For example, our local natural gas company will provide therm consumption but not the dollar amount charged for each bill.

Is it OK to offer sparkling wine/beer or should I stick with non-alcoholic drinks?

I still like dishwashers because it helps with the water consumption but low end units probably better without them.Low end units tend to get low end dishwashers so they don't have hard food disposers so they can't handle non-cleaned plates. 

As for the others I don't think most people who own 1,000+ units spend the majority of their income on consumption for themselves the majority is either reinvested or put towards causes that are important to that person in particular. 

It is also important to get enough sleep, drink enough water, avoid alcohol and drugs.

I hate pop, cigarettes, alcohol, and tylenol....all of which kill people every single year.

That's what was suggested, along with other sleeping suggestions like not eating before sleep, avoiding alcohol, staying off electronics right before bed.

Stop watching tv, exercise,  read, i would guess limit drinking alcohol, or eliminate it.