When Michelle dries off the cup, the rag jumps from her left hand to her right between shots.
When D.J. and Kimmy start to leave the record store, they stand about shoulder to shoulder. In the next shot, Kimmy is about a step behind.
When D.J. is trying to convince her father to let her skip school, he insists on a hug. After Danny hugs D.J., you can clearly see the stain of Bob Saget's makeup on her sweater. The stain disappears in the next scene.