I bought this storage bin at Target and I know that Joann's also have them. They are great because you can get them in different sizes and colors and they snap together.
I put the booklets in the top one in alphabetical order. In the second one I keep a booklet with a sheet for each cartridge with the images that are in that cartridge.
In the third one I keep the Cricut manuel the markers, extra blades, deep cut housing and blades and any other things pertaining to the Cricut. I hope this helps. It works for me maybe it will for you also.