Mine is done by color.
And since there's a lot of it and it's in drawers, I have split the colors into larger pieces and scraps (which are in strips or squares). In other words I have a large full drawer of purple-red-pink-orange and a smaller drawer with strips and squares in the same color. Same for blue-green and brown-natural-yellow and black-white-gray.
Are you a quilter?
Quiltzi...High Plains Member of PunchkateerzI'll stand with arms high and heart abandoned,
in awe of the One who gave it all.
I'll stand, my soul, Lord, to You surrendered,
all I am is Yours.