I realised that this route is more convenient that my previous route
Why? How?
Well......... Previous route entailed walking a mile (or thereabout) to Stratford station to board the overground train first to Cannonsbury station, change, then Cannonsbury station to Hoxton station. This route was a much better route to taking the underground believe you me!
However, taking the National Express from Maryland station to London Liverpool station was far the best route.........and a brisk mile and a half (or thereabout) walk to the office keeps me in ship shape