I keep all my BIONICLE sets in what used to be a bookshelf. I did half to fold some of them up to make more space for other sets
The top of the shelf is where I keep all my Titans and vehicles
The first shelf is where I keep a lot of my larger canister sets
The shelf below that is where I keep all of my smaller boxed sets and smaller canister sets along with some other figures because I was running out of space, such as the Vahki and Panrahk
Then there is cluster**** that is the G2 shelf, where some sets had to be clumped together for the sake of space and others (mainly Skull Scorpio because he takes up ALOT of space) had to be slightly taken apart.
I also put Axonn and Brutaka on a separate shelf for some reason