In "The Suicide" episode, Kramer is talking to Newman, concerned about getting back the vacuum cleaner that Martin had borrowed. Newman says that Kramer can use his carpet cleaner. Kramer declines, and says something like (I am citing from memory) that "the carpet cleaner is the biggest American scam (?) since.." and here is my question: (I just don't hear exactly what he is saying) since what??
Trond Olav