I use a box with little compartments in it that was originally intended for beading! I actually bought it at the dollar store...I need to get another one too. the only feet that don't fit in the small compartments are my darning foot and my walking foot, but there are long compartments at the top (for needles probably?) that I keep those in. It's SUPER handy - especially for retreats or classes, I just bring the little box and don't have to pack any feet or tools.