I'll be honest I used to floss about once every 2-3 weeks. About two years ago ended up getting light bleeding from gums when brushing. BAD! Dentist told me I needed to floss more frequently and to try using a mouthwash.

I brush, floss, and rinse with mouthwash AT LEAST twice daily. Teeth are whiter than ever, gums are nice, and breath stays nicer for longer times. As for cavities...I haven't had a cavity in probably 10+ years. Unfortunately I need a crown though, because one of my fillings is falling apart and I chipped my tooth a little. Dentist told me that's about the average expectancy of the filling. But not looking forward to having it done.