this is easy. i participated in a thimbleberris BOM. but, it wasnt until a few years later that i got around to thinking "i really should start on these blocks". so one night, i undertook cutting all of the fabric for the blocks in one night. did i seperate by block??? oh no....at the end of the night, i had a big pile of little pieces of fabric that i had no idea what went where. They are in a plastic bag, awaiting the day (HA!) that i have patience to figure out what fabric goes to what block.