When the waiter comes over and Elaine and the Maestro set their wine glasses down, the wine is still in the next shot. Then, the distance between the glasses keeps changing without anyone touching them.
When George (Jason Alexander) is speaking to the security guard about the chair, the same man walks by twice - from right to left.
When Jerry asks Ciccio if there are any houses to rent, Ciccio has just exhaled a large puff of cigar smoke. In the next shot, the air is clear.
Jackie Chiles asks Kramer who put the coffee lid on because it was important to prove liability. However, in the previous episode Kramer is in the line with the movie with the top off for several seconds; ultimately putting the lid on as they approached the front of the line.
In "The Postponement", Kramer could be seen drinking coffee outside the movie theater and then put the top back on before going inside. In this episode, Kramer tells Jackie that he took a sip of the coffee, but still Jackie asks him if he put the top on or if they (Java World) did it for him, and Kramer answers the latter.