Back when I played baseball, I always tried to end batting practice with a line drive so that would be what was in my mind's eye during the game. I use the same idea when I am shooting. I try to end with a great shot or a great group, even if I have to get up close to the target to do that. On a day I am shooting bad, I will stop after a good shot just to end on a good one. It seems to help.
Joe