I brush my teeth twice a day. We used to have some hawt tasting Colgate Plax mouthwash before but it ran out like a week ago and no-one has bothered to renew our supply on it so meh. Also my toothbrush has a tongue cleaner on the back, but I suppose every second one in the world currently has one and it really cleans my mouth from bacteria.
Speaking from the teeth health point of view I have a few fillings, but as far as I remember I've brushed my teeth properly always. But there was a period where I visited the dentist quite often to get them teeth fixed and now it is much better.