Naughty postcards............

Remember when the holiday postcards were de rigueur for every holiday or time away from home. Naughty ones for selected friends but conventional for family, all to be written on arrival so they stood a better chance of arriving home before you did. Also the phone call home from the call box that you queued for listening to what the current user had for dinner and so on
Now it's all mobile phones and texts home, with smart phones I suppose it's videos