Forgetting to mail in the ballot is a lot easier than forgetting to vote in person, though, for me! I'm a lot more likely to forget to mail it in several times over several weeks, even with reminders, than I am to actually stop in and vote. I've actually tried to vote by mail several times now and have yet to succeed.

Also, with early voting in this state you can get a second chance sometimes even if you're the sort of person who prefers to vote in person. :D