A New Quilt Project

I started a quilt for my Grandson, Austin.It is a scrap quilt that I am doing in shades of dark blue, dark green, brown, rust and dark red. I have all my scraps of cloth in plastic shoe boxes organized according to color. I have lots of scraps. 10 boxes of blues, 5 of reds etc. But do I have enough of the right shades? No! I went to Joann's with my Mom and spent another $100 and still I am struggling to get the right combinations. I need brown combined with blue,green or red. Anyone who thinks a scrap quilt is made of scraps obviously has never made one.