I have gradually amassed quite a collection of different feet for my Janome. To start off with they all fitted in this little wooden box. Trouble is, every time I wanted one I had to dig out the box and tip them all out to find the one I wanted.
I cast about for different ideas, tried some little drawers, and ended up using my embroidery floss storage box (here or for the U.S. here). It's ideal in that the dividers go right to the top and the lid clips on securely, so the feet can't get out of their compartments even if it is on end or even upside down! (I have filled it, so if I buy any more I will have to buy another box!)
I made map of what was there and fitted it inside the lid (like a chocolate box selection!)
I finished it off with a printed label for the lid.
and now I keep it on my little bookshelf (along with my Sewing Machine Needle Organizer) as it takes up very little room and is far more handy!
I love being organised!