Collars (for the occasional nawty dog)
Whips (in case someone gets nippy or I need to fend for myself in the field...much easier than carrying normal whips!)
Temporary fixes for things
Fencing line (although they still act like they get shocked by it, lol)
Holding things together
Carrying hay to the horse
Aaannnd that's all I can think of...What do you guys use it for?