If you spray the bottom of your horses hooves with cooking spray when the snow is really clumpy it keeps snowballs from building up real bad. Even if they do get snow or ice built up under their hoof, it pops right off. :] It works great. Also spray Mane and Tail conditioner on your horses legs before a show, it makes their legs extremely reflective and it makes their muscles obvious. To encourage hair growth without paying for MTG mix a container of 1/3apple cider vinegar (or regular vinegar except it may dry out skin if you don't supplement feed with veggie oil), 1/3water,1/3Listerine(blue) and a squirt of baby oil. Mix it in a spray bottle and put it on where there is little/no hair and it will help it grow back.
Thats all I can think of.