Usually, by the time I finish one project, another has been started that was requested, or a gift to give, or something like that. I will also be swayed by a certain color over others (eg. took a long time to finish that last blue with lime green- I need to look at something more subtle now, or more traditional.) I will also rotate between something complex and something really simple, or something with minimal quilting versus more complicated quilting. I do try to challenge myself with something on each project though- a new concept in piecing or new stitching in the quilting, etc. Just go with the flow....