I voted! 23 of 303.
Warning: your ballot may have surprise people on it! Surprising at least if you forgot that there were local primaries too. I don't remember who the two people running for non-presidential offices were on my ballot; they were unopposed.
In Massachusetts, you should not be surprised, though I was, to see a slate of candidates for your ward committee. A ward committee is the organizing body of a political party for a ward, which is a section of a city. Wards are divided into precincts. Each precinct has one polling place, which is where you go to vote.
A ward committee does the local business of a political party, which consists of running voter registration drives, raising funds, campaigning, talking with the media, sending delegates to state party conventions, etc. They are elected during party presidential primaries every four years.
This is a summary of what ward committees do, from the bylaws of Boston Republican Ward 3.
This is a summary of ward committee mechanics, from the secretary of Cambridge Democratic Ward 3.