I save and use even the tiniest of pieces. I put them down on the really strong Steam & Seam, press, then quilt very tightly. I make 12"x18" little blankies for the rescue group I volunteer with so the kitties can have the blanket that has been in their cage when they go home. It gives them something with 'their' smell on it and makes it, I hope, just a little less stressful for them. Sometimes the edges come up a little with the washings but.... They turn out pretty well, even if I mix larger squares with the tiny pieces. I try to sew the larger ones together, then add the "teeny-tiny pieces" blocks. The trick is keeping up with the demand! Someday I'll try to figure out how to post pictures. Course camera has to get back from being serviced first, hehe.
Wendy