If not, why not?

I can't remember if it was here or somewhere else, but a commenter was saying how they don't vote. I wasn't willing to get into it there, but I was really curious as to why.

It's voting season (province today, city in the fall. I also want to say it's midterm election time for the States but despite watching The West Wing and House of Cards I'm still not 100% on what those are. But boy, are they able to fill plots and storylines!) and it's got me thinking. Do you proudly vote? Forget to do it? Conscientiously object? Are being (possibly illegally) stopped by work from going to the polls? Do you go just to spoil your vote in protest? Do you love it so much you volunteer and wear "I Voted!" stickers?