Everytime I go to the range, I put the target at about 10 ft and quickly double tap. Look down, then pull up and double tap again. I do this about 5 times or so. I'm not really looking at sights...I'm point shooting. Just as when there is a physical attack on the street, I will not have time to stretch and warm-up before the fight, I will have to get it on immediately. I feel the same way about shooting. I don't want any warm-ups, just pull up and double tap. If I have different guns with me, I will do this at the starte of each gun.
Afterwards, when I can get away with it, I like to do some Mozambique drills, then usually just try to cut as much of the same hole as I can at different distances (usually not very successfully)