Mine is a little convoluted but it beats having to go up and down a stool.
I put white stickers on blue painters tape. (Why can't they make white
painters tape? Masking tape is too sticky). Mark each block by row....so
it's A1, A2, A3.. then B1, B2, B3, etc. Then after I've stuck all those stickers
on each block, I take lots of pictures. Then I take the blocks down...even
if it's not in order I have the stickers and photos to guide me to put them
back in order before sewing. I've been doing it for years and this system
has never failed me.