My wife is a big fan of the heated seats and I like the TV remote, but I've got to say IMO the best invention are those leotard-like extremely formfitting pants worn by many young women. I'm sorry I don't know what they are called. There are exceptions but for the most part those who should wear them, do, and those who should not, don't, which is a key factor in my belief. As a warning I should add I've discovered as a form of appreciation its considered bad form to spank the best examples of this art....usually.