Twice a day (sometimes three). Once when I wake up, before breakfast/coffee (but might get pushed til after on occasion), and once before bed, every day. A third time might be in the middle of a day before heading out somewhere if my mouth feels like it needs it, especially if I've eaten something with garlic (etc).
Depends. I work from home. That said, technically, it's recommended to brush before because the stuff in toothpaste is meant to protect your teeth. But yes, if I were going out and about into the world, after. 😂