George Bluth was adamant about his children leaving notes for various things, as to not inconvenience him. He once taught his children a lesson with J. Walter Weatherman about leaving a note when they forgot to leave a note when the milk had run out. ("Pier Pressure")

Throughout the rest of Arrested Development, many notes can be seen in the background. Some are listed here.


J. Walter Weatherman: That's why you always leave a note.  

 From "Pier Pressure"