I vote in national and state elections. Many local positions are unopposed so I don't worry about them, however if there are 2 people running I will vote. I also live outside city limits even though I have an address in that city so I cannot vote in city issues. I can vote in school district or township issues. For instance, the mayoral position is open in the city this year and there is only one person running. The big vote for that was in the primary where 3 people were running. So as long as 1 person votes for the person, he has the job. The only thing I could vote for this fall is 2 state issues and with recovering from surgery, I'm not sure I will try to do it.
In my state most of the big elections fall in the even years with very little on the ballots in the odd years.
I do not vote in primaries as my state has you declare a party. I do not vote on party lines but what the person stands for so I have never registered for either party. Guess you could call me an independent.