The old fashioned way.....knock on doors. A lot depends on the shipper and the carrier. How many outbound loads daily ? Can you return for another load at the shippers schedule ? If not, can you schedule another truck to cover it ? Are you one truck co. or 25 truck co. ? Are the outbound loads to one area or a bunch of areas ? Are the loads "live" or preloaded ? Some shippers are slow pay. Most contracts are on a hand shake also. So they can dump you without notice. Have fun and luck to ya'