Old fashion or not?

All my work is on the computer. My communication goes via e-mail, Facebook, Twitter. My iPhone is my phone, my net, my camera, my calender, my notebook. When was the last time when I wrote a lettet or at least a post card? Or wrote my memo with pen to the notebook? Are those last ones too old fashion or still modern enough to be used? I think they are still ok and very useful at work and freetime.