I buy 2 yard pieces of various fabrics just for binding. We all know that sewing is our choice of therapy, and when I need a "fix" I will cut my fabric and make binding. After making the binding, I fanfold it, wrap a couple pieces of blue painters tape around it and keep in a bag by my machine. When it's time to bind a quilt, I usually have a binding I can use.
This kinda takes care of two things at once, I've got my sewing fix and binding. Win win situation.