I've usually got several UFO's hanging around...for various reasons - I want a particular fabric/color and can't find it, I need a backing, I'm frustrated with it or I just don't like how it's turning out. For the first 2, I make a list and carry a swatch/es everywhere I go until I find what I'm looking for or find an acceptable substitute (I can easily get fixated on "I must have thus and so and nothing else will do" which is so not true. I'm learning to be more flexible!) The last 2 - I find I need a break from it which of course means I start another project! But that break helps my creativity and/or patience so I can usually come up with ideas to make it go better or decide that like it or not, it needs to be finsihed. Finishing smaller projects gets the "go get'em" up and running too...even if I have to start a new small poroject to do it!