Well what hubby and I PERSONALLY do...
We are part of a mini horse driving drill team: www.minimystique.org
Our big three upcoming performances are: A horse festival in Az next month, the Rose Bowl Parade for our third year (and the Equestfest performance that goes along with it), and the 2010 WEG in Kentucky :)
We compete in combined driving, which is driving's version of eventing: FUN!!!
We also drive in parades, though that's pretty much just wtih the drill team. I drive around the neighborhood for fun, and at driving shows the few times they have them here.
We breed them and love on them and just enjoy being around them.
I (hubby wont' but is my groom) show them at AMHA, AMHR and other shows. I do halter, driving, obstacle (in hand and driving), showmanship, and liberty. Want to do some of the jumping classes, just need to train a horse for it ;)