In one shot during the poker scene the baby moniter changes position to the other side of Lynette then back again.
When Bree sees Dr. Goldfine in the restaurant, she sets her menu on the table and places her napkin on her plate before going to speak with him. When she returns to her table, her menu is now on the plate and her napkin is in her chair.
When Lynette is talking to Jordana the items on the table keep changing position in between shots.
When Susan is following Paul in the car she borrowed, we can see the reflection of a crew member on the right hand side of the window.