An article I wrote for the Huffington Post on 25 questions you can ask to know yourself just that little bit more. Knowing who you are and what you want is the first step in finding your purpose. Click through to read the post!
That there is the Plus Fours Routefinder, the precursor to the roadbook and an interesting (if ultimately failed) example of pre-ID industrial design. Invented in the UK, the wrist-mounted device provided user-advanceable mapping information at a glance.