We've repeated Potato Chip, Yellow Brick Road, Friendship Star, Turning Twenty, Alternating 4-Patch, Cheaper by the Dozen, and Rail Fence. The only time we didn't change the colors was on the Friendship Stars; they were for 2 of our nieces who are cousins and best friends, and they like to get things alike.
Of course, those are all beginner-type patterns. I guess we should move out of our comfort zone a bit. It is nice to be familiar enough with a pattern that you can make one up pretty quickly.
Merryquilter - the potato chip quilt is a simple two-fabric quilt where you frame a Fabric A square with Fabric B strips, and vice-versa. There are cutting instructions here:
http://www.quiltingboard.com/t-35373-1.htm#764321
We have finished three of them. If you click on my name and look at my topics, one of them is "Cooper's quilt." Also our first two finished quilts were Potato Chips.
Darren