Been there, done that, too!!
I will say that I only cut enough fabric to finish the block(s) that I'm working on at that moment.
And let me one up you guys......Imagine having a vision of a quilt - buy all the fabric - out of town while quilt shop hopping on an out of town trip....get home put the block together and it looks oogalie!!!
Now I'm trying to find another quilt to make w/ all these fabrics....btw - the quilt is going to be king size....That's a lot of fabric!!