How Far Did I... lets you use your Foursquare check-in history to track how far you've walked or driven via Google Maps Directions. With a little more information, you could approximate how many steps taken, calories burned, gallons of gas used or your cost of travel. The utility defaults to exactly one day ago, but it can be adjusted within the bounds of the Foursquare API. For your privacy, How Far Did I... does not store any of the information you enter.