Never. I hate physical mail. It makes me ill thinking about. All that ink and paper manufactured just so trucks can drive it all around, get bought, driven around some more, printed complete spam junk on it and mailed, then driven around some more, then overpaid assholes carry it to your door. THEN WE THROW IT AWAY. What the fuck?
How often do you sit in a hot bath and wish you could stay in it all day?