I wish I had insisted that Tesla not deliver me the standard "Spare Mobile Connector" and instead sell me the NEMA 5-15 adapter for the UMC. Would I ever carry just the Spare Mobile Connector? No. But, if I'm traveling to unknown places, I want the ability to charge via either 220 or if 110 if that is the only thing available. So, now I'm carrying two cables instead of one cable with 2 adapters. It's a waste. Am I missing anything?