I'm a new quilter and yes I am addicted. I find quilting ideas and colors running through my mind all the time. Of course I have no idea how to make them all. But the biggest problem is when I go into a fabric shop with no quilt pattern in mind and see a piece of material that I know I must have for some future quilt. How much to buy? That is troubling me. Did I buy enough for that future quilt. What does the experienced quilter do? A yard? Two yards? Please help.