Organizing a Tack Room?

I am cleaning up my messy tack room and was looking for some help on how to do so! It's not very big, but then again not very small. The place gets dusty often and is completely shut up aside from the door that's left open (but then again it's in my stable block so it doesn't need to stay shut.)

I am 15, my sister and I ride our horses every day so the place always gets messy! Please help me! I need tips on organisation, some cool things I can do with it etc.

One wall is full of shelving, another chockers full of saddle racks, the other two are blank. There are a few halter and bridle pegs, but not enough.

Here is a picture of it "clean".

By Rosie from WA