Next in the list of my go-to gear are writing implements. I think I mentioned in a previous review, that I believe writing by hand has become a lost art form. That does not mean it will go away, but now days we are just as likely to see stylus-to-tablet as we are to see pen-to-paper. So in that mindset I ask what is your favorite writing tool? Mine is a Rotring Quattro-Pen Data. If I remember correctly this pen came to my attention via this review on The Gadgeteer. I was looking for a pen/stylus combo for my Sony Clié when I saw it in a post by Julie. I must have had this pen for over 10 years now, and it still works great. The Rotring Quattro has a black ink pen, orange highlighter ink pen, a mechanical pencil, and a non-capacitive stylus. This pen/pencil/stylus has been my work horse for a long time, and with its quality build, it should be in my service for many more years. So now it’s your turn. Tells us about your favorite writing instrument.