My latest headache, I mean, project!

I'm using scraps from my Indigos Around quilt to make a twin-sized bed quilt for the guest room. Because of the size of the scraps, I had to go with 4" cut squares. I knew I wanted it to have some sort of "pattern" to it and it's coming along pretty well. But it's tough to fit all the rows on even the king-sized bed in the basement! I have to cut some more squares now that I know where it needs to be filled in. This is my largest quilt yet, and I've already got a king-sized one in the planning stages. I need a design wall. Pronto.