We have the temp setting to 81. Since we have fans in most of the rooms, it's not bad at all.
Edited to add: This month's utility bills
25.01 for gas for the house (water heater, clothes dryer and stove/oven)
26.00 for water (billed EOM. this is the monthly amount, the minimum (5,000 gals/month). includes trash, park support, etc)
27.13 for electricity (set at 81 degrees)