You may want to try this - get a flannel back vinyl tablecloth the size of the quilt (pretty cheap at discount stores) - Lay out the quilt on the flannel side, fold gently in on itself - that way you do not have to lay it out again and it will be ready when you muster the energy to make that final green/white block!
Then step back, take a deep breath and salute your progress with a glass of wine!!