Finding the fastest route betwixt your dozens of errands sure would save you time and gas money, but who are you fooling: you're no cartographer. Or is you? Enter TSP Solver.
TSP's an interactive GMap designed to nail down the most efficient round-trip route linking up to 24 locations; short for "Traveling SalesPerson Solver", it begs the question "If Willy Loman had had access, would he still be dead?". Just input addresses for all your stops -- home/dry cleaner/supermarket/podiatrist -- and TSP'll map out the goods, with more detailed directions below, saving you from getting lost and embarrassingly ending up at your manicurist instead. Results can be tweaked by stipulating that highways be avoided; you can also get walking directions, helpful in places like New York, but here it pretty much means directions from your door to your car, then back to your door because you forgot your sunglasses, then back to your car.
If you hate your home, you can also map out the fastest one-way route, all the way from "A-Z" -- but who are you fooling, you're no...alphabatizer.