Ginger,
not sure.. Sometimes ill just sew the eaders and enders when my boxes of sqs get too full.. I always have 2x2 sqs next to my sewing machine in a shoe box, ready for the grabbing.. and i always have scraps... I have an Accuquilt GO so when my scraps get out of control I tame them and cut them up to specific sizes.. But when i run out of 2x2 i move on to 2.5x2.5 and so on.. But i hardly ever run out of 2x2.. They seem to multiply in the dark..