I find myself semi-regularly trying to work out where the various vendors are around the game. I'd really like it if some of these things were kept track of for me - ie. when I first meet a vendor, something is added to my notebook telling me where they are in future. The fun of the game is in the doing of things, not trying to remember where things are, so it seems to me that this would speed things up for me and help me concentrate on the awesome stuff.