A barn I was briefly at had a very good system, given they had quite a few school horses. Their boarder's tack room was different, there were cubbie lockers for everyone.
However, the schooling tack room was pretty neat. I have to draw a diagram to explain it...MS paint doodle, just to be quick about it.
Really crappy little drawing there. But anyway. The thing on top represents a shelf they had, where the grooming bucket was, designated fly spray bottle for that horse, ect. Below that there was a rack for that horse's saddle and two hooks next to it for the horse's halter and bridle, and a couple had hooks to the side for other equipment that needed to be hung up. The strip underneath was where they hung saddle pads/blankets/sheets ect. The grid thingy is an awful impression of a metal basket thing that was attached to the wall, and wraps, boots, misc. stuff was in there. They were strict about students keeping it clean too and stuff in it's place. But that was how it was on one wall. They had one wall that had cubbies for students personal belongings, and one had whips, helmets, vests and such, and this little shelf/cabinet thing that had basic first aid stuff for horses and humans. The short wall by the door had a white board with notes to the students that were important, lesson times, ect. It was really efficient. I wish I had pictures, but it's been a while and I don't.
My current barn has a small tack room, that's attached to a lounge. I don't have pictures on hand but I will take some tomorrow. One wall towards the back is all saddles and stuff. School and boarders'/leasers' tack. We are a small barn community, so we know what belongs to whom usually. On the wall to the right of that one, boarders' and leasers' tack boxes are lined up, and there are also a couple of racks for halters and bridles. On the wall to the left there are cubbies for our personal stuff. And there is a piece of wall that kind of sticks out from it, but on the opposite side of that little piece, facing the saddle wall and the doorway to the lounge is a shelf that has...a bit of everything on it. Irons, pads...and there's another bridle rack by it too I think. I will bring pictures back tomorrow.