This entire project took less than 20 minutes, and I already feel better after 1 day of use versus watching them throw their backpacks down on the floor/couch/bench/kitchen counter, and this organizational system (as simple as it is) will help them always know where their library books are and they can be responsible for their own paperwork.
So if you don't have that dream-room space for mud room lockers, don't fret! You just need a small space of wall and some decent hooks to keep things tidy. Next up: how to tackle Shoe Mountain (I swear there are only 2 children living in my home, but it appears as though that is the equivalent of 86 feet!) - help is on the way!!! :)