The Propane Express, Shakopee

With its doorstep delivery system, The Propane Express ensures that no barbecue is called off for lack of fuel. Staffers arrive at their clients' locations to present them with propane tanks, then tote away their empty tanks to save clients the hassle of lugging them to the refill station or replenishing their supplies with helium from expired birthday balloons. Customers simply indicate where they're leaving the empty tank, and the delivery workers will perform the switch even if nobody is home.