Ummhh... big clear plastic tote with lid. We then cut them into 1 1/2x 3 1/2 inch strips and sew them by color families unto 3 inch wide adding machine paper to make "new" fabric to be used in quilts.
http://www.quiltingboard.com/t-56940-1.htm
tute that was posted on the board
I got the idea from this except I sew the pieces by color families.