Please, for the sake of the sanity of the other boarders, keep your stuff neat and put away and don't chuck your stuff everywhere when you are riding (keep it hung up, out of the way, or in your tack tub). Immediately clean up poop and keep your grooming area clean after picking feet, etc.. It's also courteous to sweep out the tack room or the feed room or wipe something down every once in a while to keep the barn looking nice.
Shared tack rooms are tough to keep neat, get a big container for everything to keep it neat, I like the big Rubbermaids with drawers. Now I have a big stainless steel tack trunk and I love it.
They say money doesn't buy happiness -- well happiness doesn't buy horses!