Minecraft Concept: Caravan

 Donkeys & mules in Minecraft can carry a payload. Therefore, if you're a merchant with goods to sell, you might want to travel by caravan. Holding the leash to a donkey, ride one yourself. Have one of your crew members riding the donkey you're pulling, while they pull another one. This continues so on and so forth.

Only the person in front actually has to move, so it's nice to kick back and relax if you're a passenger. Now you've got a little train across the desert!