One piece of advice I got from an old boss of mine that has always stuck with me was, "Never just get off your horse at the end of the day. When you ride up to the barn and just get off, you're teaching him (and you), to be lax, that the barn is his safe place and he can behave anyway he likes. Either get off him a ways before you get to the barn, or ask him to perform a little."
Since then, depending on the horse and the level he is at at the time, I always ask for a little something before I get off and put him up for the day. This horse is in the two-rein, so I ask him for a little more than I would a colt that's in the snaffle bit. Because this horse knows more, I ask more of him before I put him up for the day. I normally ask him to turn around slowly and correctly both directions, and then ask him for the same turn around, just a little bit faster. I also ask for a smooth and correct back up before I get off. If I was on one of my snaffle bitters, I'd probably ask them to step over their hip, give at the poll, and play around with placing their feet anywhere I ask with the lightest amount of pressure possible.
This has really helped me out with keeping my horses free from being barn sour, staying sharp, and keeping their weight shifted towards the back, even when they're "done for the day."
I hope this is something you all experiment with if you're not already!
xo xo Liz