(1) A smaller, easier project
(2) something totally different/new technique/color, etc.
But my quilts tend to span a whole spectrum! For example, I finished a Hunters Star and an appliqued flower pot and am now working on (1) teddy bear appliqued/patchwork baby girl quilt (2) a scrappy String x (3) a very easy rectangle in a rectangle (4) an original b&w non-standard patchwork with applique on it (5) a handpieced grandmother's flower garden.
Usually when I get tired on one, there is another that appeals to me. However I do really need to finish the baby one in the next week or so and 3 of the others by mid-april!