Background: I'm looking for a new place so I don't have to drive to campus and drop $380/semester on a parking spot I don't use more than three times a week. Anyhow, I have a whole pile of apartment listings from Craigslist and I'd like to visit them all, but I'd like to take the shortest possible route to reach them. This is a classic Traveling Salesman Problem. Google Maps has a multidestinational directions option now, but it doesn't solve the TSP. Are there any free online TSP solvers that actually incorporate addresses, perhaps as Google Maps mashups?