I usually have a couple of quilts going at one time. My claim to fame is that I have never had a quilt started that I didn't finish within the year. There are always interruptions of small projects -- usually mending donation quilts that were turned in with problems. For those I give myself a deadline of the next meeting of that group, so that I can get them out of the house. Other than that I have a "quilting cycle". Because almost all of my quilts are given to the Bible camp quilt auction, which is held annually, that is the last step in my cycle. Before they go there, most of them are entered in the fair. So everything is first finished for the fair, and I have all year to plan, start, and complete them. I won't leave a fair quilt undone, because it means that it would have to go to the auction having lost its chance for exhibit first.
Of course, baby quilts for family members enter into the mix. If only I could get people to let me know about their pregnancy 11 or 12 months before the baby is born, so that the baby doesn't come before the fair. Ha!