When I was growing up, my school district had a particular required course for eighth grade students: the etiquette luncheon. We learned business manners, table settings navigation and (for some of us) quick clothes-stain treatments in the bathroom after inevitably forgetting to mind the pasta sauce. What I didn’t learn was online etiquette — the rules we’ve collectively established without verbally agreeing to anything. In the New York Times’ Smarter Living newsletter, Victoria Turk clued us into the most common digital slip-ups, including the email CC Rule. Do you feel that? It’s the years of email stress lifting off our collective shoulders.