Does anyone know of a good simple tool for mapping the world as one explores it, other than plain ole pen and paper? There seems to be tons of tools for creating areas but I am looking for something to use in mapping out a region of the world as I explore it. Ultra simple is what I am after, not something where I am expected to map each tile in an area but rather just mainly the transitions such as the route to get from Blandenberg to Equaloria, or Zvid to Le'or and what areas one would pass through on the way.
Since every area is pretty much square or rectangular I was thinking of just using an Excel spreadsheet, and that would serve my purposes but I thought perhaps a tool already exists for this exact purpose. The ability to add notes and/or images to a specific area's info would be great too.
Note: It should start out as a blank canvas and the user adds the areas as they travel, I am not looking for any kind of cheat tool that will show me the map as the game files define it.