Lynette's children are in the bathroom and one of the twins is about to drop a toothbrush in the toilet bowl. She tells the boys to brush their teeth. The boys turn around and in the mirror you can see Lynette saying the same thing with no sound.
When Bree is preparing a care package to ship to Andrew's camp, she sneaks some lemon bars into the package, and quickly closes the two side flaps of the cardboard box, leaving the end flaps out. In the next shot, she is immediately taping the box with all flaps down.
Parker is tearing the flowers apart until there are none. In the next shot, there are some flowers left, and when he jumps off the chair, the flowers have gone again.
When Gabrielle and Carlos are making out in bed, the smaller of the two pillows on which Carlos has been resting as well as the corner of the blanket changes positions between shots.