Ahh, I've heard from so many people to not brush out your horses mane or tail more than necessary, although I don't get why... My little boy has one of the thickest manes, and I brush it out every time I groom... :\
Anyhow, I cant live without my body brush. I use it for the mane, the tail, and of course, the body.
It removes all his dirt, and makes him shine
Also, a squirt bottle full of pure water. Its soo handy when it comes time to braid, or get dirt than wont brush off.
After I tie up my boy I hard brush him, soft brush him, curry all the sweat/dirt marks, hard brush again, soft brush again, pick his hooves, bot knife his legs, brush his mane and tail, apply polos (If Ima ride) and then use a shedding blade to get off any excess hair, and spray with fly spray.
After the winter, when its shedding season again, I bust out my FAVORITE tool of all, my "Slick n' Easy" stone. It works magic removing all of his winter hair.