I work on one project at a time but have been known to work as many as two when necessary. I don't like UFO's hanging around & not being finished. When I first started to quilt, the gal that got me hooked always had tons of UFO's. I never understood why she didn't go ahead & finish them so they could get the precious use that they were intended for. Told myself that I would never get like that & have stuck to it.