When I first started quilting I choose the least variety of fabric to make the quilt look good and spent a long time agonizing over whether this fabric went with this other fabric. It sometimes took days and several trips to the fabric store to even start my masterpiece. Then I started making scrappy quilts. It boggled my mind that other quilters could get so many pieces of fabric to coordinate so well together. In my mind they must have spent months picking out each individual fabric to go so well together.
Finally I decided to just start sewing, because even if it looked hideous (and some of those fabrics absolutely look hideous right next to each other), that was okay. I just wanted to sew the quilt!
When it was all finally done, I stepped back and looked and it was NOT hideous. In fact it became one of my favorite quilts. Since then when I intend to make a very scrappy quilt I just reach into the scraps and sew without thinking. Other times I try to use scrappy color groups or values to keep the design visible while adding a bit of sparkle to the quilt.