When Morty (Barney Martin) dumps the wallet in the rubbish bin, it's behind the car but when Uncle Leo (Len Lesser) takes the wallet from the same bin. it is near the driver's door.
In the restaurant scene, Gerry's father insists on picking up check from Jerry Gerry. From the father's side of the table the check is unfolded. This cuts to Gerry's side where the check is folded, and quickly back again where it is not.
When Kramer lights his cigar from the sole of his shoe in the scene with his psychiatrist the sandpaper used to achieve the effect is clearly visible.
In the end, Leo is parked illegally. His car is facing backwards on the right side of the street so his car would have been ticketed or towed.