I used to have my needles in these great boxes. Actually I still have my straight needles stored in them. But my circular needles were getting to be a problem.
I found inspiration on Pinterest and put my circulars as well as interchangeable tips into clear sheet protectors available at Staples and put in a 3 ring binder. Each sleeve has one size needle but all types. For example the number 8 tips and all circulars (16", 24", 40") are all in one sleeve with notes as to what I have stored. Here's hoping it keeps me organized.