I wondered aloud to a friend why I make the full quilt, and then turn it into 2 - I did exactly the same thing with En Provence last year. And I think I figured it out. I really don't need more big quilts - but I remember the years I made smaller. Making 1/2 the pieces during the mystery then means being forced to make a few more odds and ends to fill out the requirements for a half quilt. Somehow, this seems more onerous than making the entire set, and adding a few bits to create a different quilt out of the result. Maybe because this way I get to pick and choose which pieces I make more of (I was NOT making any more of those pesky split 4-patches, for example).
I have 3 blocks left over, and a few odds and ends of fabric. One block goes onto the donation bag for the second quilt. The other 2 might become pillows, or an entirely new quilt sometime down the road. But I must remember to set aside binding for both these quilts first. Good thing there's lots of grey leftover.