Sorcery Teleport Questions

Question: the rulebook specifies that when teleport ends (concentration spell), the target goes back to their starting point. This sounds very restrictive, I want to make a travelling merchant that quickly goes from city to city, but I would end up back at my starting position each time? Further, how much can he take with him? The limit in Size specifies creatures, but what about bigger loads? And let's say that the Size of the load exceeds this, can I add targets, dividing the load into multiple targets?