I haven’t tired of the E*Trade Baby yet. I love this commercial, even though I don’t use E*Trade. And it makes a good point. If you are a relatively active investor, having a stop loss can be helpful, since it automatically sells an investment if it drops to an unacceptable level. (If you are a long-term, buy and hold investor, though, a stop loss may not be appropriate.)
Anyway, enjoy the commercial.