I have found that working on a quilt for a while, and putting it down to work on another project, keeps all things fresh and exciting. You see different colorways, different patterns, different techniques by working on several projects at a time. There is one caveat, however; you MUST be organized and label your process well, such that when you pick up a project, you know EXACTLY where you are, what you're doing, and what your next step is. One of my quilts won People's Choice/Best of Show/Best Original Design. From start to finish it took a year to complete. When I hit a brick wall as I designed the quilt, I folded it up, and there it say for three months! Upon unwrapping it, I fell in love with it again, and the next step came immediately!