It's whatever works for you, however starting many projects may lead to lots of PIGS or UFO's. I've always loved to make tops and my top production greatly outpaced my ability to get them quilted. As a result I now have two very large bins (and there's more in smaller boxes) that are not finished. My goal since January has been to finish a quilt a month and right now I am quilting #6! Is my bin empty? Absolutely not, although the lid closes more easily now. My machine quilting is greatly improving and family members are getting new quilts but I'm not nearly finished.