For my buttons still on their cards, some of which predate the 1940's, I decided to group them by color on a bulletin board. They are decorative and useful this way.
I had a shelf my father had made for me that I wanted to use in the room and after installing it, I had an inspiration to use lightweight chain and small dowels to create a thread holding system. It's simple, inexpensive, flexible and attractive. I even use it to hold my serger spools. Here it is:
I have the dresser my sisters and I shared as children and it has drawers that are perfectly suited to organizing sewing supplies, such as mending, bobbin trays, trims and bindings:
And milk crate sized wire racks work just right for most of my fabric stash, sorted by color and fabric type, folded into like dimensions, with a drape to prevent fading yet easy to get to when inspiration strikes:
And I don't want any comments about personality attributes or disorders.
I'm happy in my space.