When you go out to buy toothpaste, you see a multitude of options...one has a coupon, another is on sale, yet another you just bought the last time. But when I go to buy toothpaste, I see only one option...Pepsodent. Is this a female vs. male brain thing, or is it two different survival modes...being open to all options vs. clinging to what we know and trust? I don't have an answer, and perhaps there is none. But I will continue to learn from you.