Skip the arctic AC
Who doesn't come in from the sweltering heat and vow to crank the air conditioning down to a temperature usually reserved for penguin nesting grounds?
But icing down the whole house just to cool you off for a few minutes is expensive. So keep the air conditioning at a reasonable setting and look for other ways to chill when you first come inside. Have an icy drink, put a cold compress on the back of your neck or change into some cool, absorbent clothes.
Another effective strategy: a quick, cool shower.