On a four-month family trip, I kept a small notebook to track our daily expenses. Later I put these numbers and details into a spreadsheet so I could track average spending over time. The spreadsheet was inforrmative, but I wanted to see more.
Roll over the bar graph (top left) or the streamgraph (below) to view daily spending details and map location.
The map will update based on which day is being viewed, but you can pan and zoom the map separately as well.