My barber in Dallas said to stop washing my hair every day, and 3 months later I owe him an apology
I thought he just wanted me to come in greasier so he could charge me for a cut more often, but my scalp stopped flaking by week 2 and I went from a $28 bottle of shampoo to a $6 one, so now I'm wondering what other "common sense" advice I've been paying too much to ignore.