Wendi's car is a 1969 Karmann Ghia.
A scene was originally shot for this episode showing that Peggy had left payment behind for her and Wendi's hairdos. It was shot at the insistence of ABC network because they worried that Peggy came off as immoral and "crazy" for running out on the bill. Ultimately the creative team prevailed and that scene was not used.
This episode features the first look we get inside Mike's workplace, Logan Aerospace.
This episode introduces the term "seat-noise" as a Cleary family expression for passing gas.