OK, say I want to play some XBox during a long trip while my wife is driving. I know they have these power inverters that you can plug into your cig lighter, that would be a good idea to use for this. I've seen them with one outlet for about $40-50, 2 outlets for about $80-100, and 3 outlets for $120+. Now, here's my question. If you are using one of the converters with just one outlet, but you need 2 (one for XBox, the other for a small TV), and you use an extension cord, or one of those one-to-two outlet adapters... what would happen?