Here's how I'm voting and why.

A few days ago, I became curious about these vote swapping schemes because they were all over my Facebook feed. I went on Trump traders and when I entered that I was a Clinton supporter in South Carolina, and hit the connect with Facebook, instead of taking me to another page which I thought would give me the option of thinking about it some more, it matched me up with a Johnson supporter in North Carolina. I messaged him that I had voted Libertarian since 1992 and looked like I would again (I first messaged him a Go Cubs as his pic had the cubs logo). I have not heard back. So I was torn. But then I started to think about it. We don't elect our President by a simple popular vote. Shame that we don't because Al Gore would have been president in 2000 and who knows what all would have been different if that had happened. Also there wouldn't be this vote swapping thing, I'd vote for Hillary no question. There is something, however, that could happen based on the national vote. This year without a doubt the Libertarians have the most qualified ticket they've ever had. Two successful, popular Republican Governors of traditionally "blue" states. Yes, Gary johnson has had some gaffes, but Bill Weld impresses the hell out of me. I wish he was at the top of the ticket and maybe he will be in 2020, although I think the hard-line Libertarians may not like his positive attitude towards Hillary.
With 5% of the vote, the Libertarians will be declared an official "minor party", and will be eligible for what many estimate to be around $10 million from the federal election commission in 2020. I think Johnson and Weld are beng somewhat deceptive when they state that 5% would be a magic bullet and get the LP automatic ballot access because that's determined by each state with different requirements. It would be a game changer though.
A vote for Hillary in South Carolina is practically meaningless. A vote for the Libertarians, however, counts nationally towards that 5%.
I hope this guy in NC votes for Hillary, but even if he doesn't, I think my vote will be more impactful by going to the Libertarians. After all I was involved, directly or indirectly, in the Libertarian Party for the better part of the 90s and 00s. Old habits die hard, and I still have some loyalty to my late friend David who introduced me to the Libertarian Party.