I am also in predicament:) I don’t have he most elegant or convenient storage but since I have to move stuff whenever I want to work on it (bedroom, common room, different houses when dog sitting) it lets me take just what I need on the go.
I have three of Stanley organizer tool boxes that clip onto each other for keeping smaller stuff organized.
One holds the tools I need in every project. Knives, Japanese skiver, a couple bevelers, beeswax, scratch awl, etc. The second holds my stamps, handles, swivel knife, small thread spools, stuff like that. The third holds my large hardware. Think brass key rings and clips, D-rings, some buckles, etc.
I turned an ikea bookcase into storage for craft books, spools of thread, dye, finished products. A cheap plastic rolling cart holds patterns, large scrap leather, and works in progress. Leather is rolled under my bed or against the wall.