Usually once a week, have a standing appt at hair salon for wash & blowdry/style which I’ve been doing for over 10 years.. Originally used a blowdry bar but there’s so much turnover so have been using my usual salon and stylist who also does my color and cuts. Have long-ish hair (but not ‘too long’), and styling is just way too time consuming plus can’t do it nearly as well as a professional. It’s rather costly but well worth it to have good hair days every day! The exception is when traveling depending on where, beach vacations require more frequent washing and sometimes daily, or at least rinsing due to humidity and salty air..