Reproduction fabrics together, Christmas colours together, flannels together, chicken and farm fabrics together , batiks together , Asian fabrics together, and then I sort by colour. It would be so much easier if I could stick to one style of fabric but I can't! I love them all. All my fabrics larger than a fat 1/4 are folded all the same way. Using the ruler method and kept in a tote I line them up in the totes so they look like books on a shelf.The fat 1/4's are all folded the same way and keep in another tote. All these totes are stored under our beds. My quilt room is our guestroom and really small. Hope this helps.