Lol.....youre not gonna win that battle.
When I go over to my g/f's house she usually has the A/C set on like 66 or 68.....so cold you can hang meat in that place.
I always turn it up to a "balmy" 72 and she gets upset.
At my place I usually keep it set at around 74 or 76. Then the cat sleeps on the register...lol