Dallas heat is unbearable and when we get home from a long, sunny drive, we want our house to feel like a freezer! Out of habit, many people run to their thermostats to turn down the temperature, and they may intentionally decrease it from 80 to 65. This extreme decrease will not cool your home faster.
Instead, this method makes your air conditioning unit overwork itself and ultimately reduces any efficiency. Consider turning the head down by only a few degrees and crank up the ceiling fans instead!