Yes, I usually vote and I've even run for public office before ( Lieutenant Governor of North Carolina, 2008, as the Libertarian candidate. I wasn't elected).
That said, I am somewhat ambivalent about voting and democracy. I think democracy is basically just a euphemism for "mob rule" and find that whatever systems you put in to try and prevent the "tyranny of the majority" never really work. And if you're on the losing end in a "democratic" system, are you really "represented"? I argue that the answer is "no". I don't hold Richard Burr, David Price, or Thom Tillis as representing me in any way. I certainly didn't vote for any of them, and would't if you paid me to.
Basically I'm a voluntaryist / anarcho-capitalist / market anarchist / whatever-term-you-prefer, who wants to eliminate most of "government" as we know it today. Note that does not mean I'm in favor of chaos or opposed to communal action (this is something critics of libertarian thought often get wrong.. seemingly intentionally at times). I just want voluntary exchange and self-government to be the fundamental basis for society, with use of force/violence reserved for self-defense.