I have several sizes that I am cutting from scraps - 1.5, 2, 2.5, 3, 2.5 x 5, and 4. Three of them are being saved for a scrappy quilt I want to make and I only cut one or two from each fabric so it will be very scrappy. I love Bonnie K. Hunter's site and have several of her books and have made five or six of her quilts.
One summer, I took to my bins (about the size of shoe boxes) and anything smaller than a FQ went into a paper grocery sack. It took me awhile to go through them and I took that bag to our beach house that summer and pressed, cut and stacked my little squares that I cut - I ended up making four or five queen size quilts from that bag and all I had to purchase were borders and backs.