I mailed in my ballot in mid-October or so, since I'm currently living outside the US, and have been intermittently posting on fb in hopes of convincing/reminding friends who weren't already having similar convos to vote. My sister and I also tag-teamed our parents: she talked to my mom over the weekend about voting even if they don't necessarily feel like citizens, and I sent them a "happy voting day" text today as an extra poke. (My dad replied to say he'd voted already, so there's a good chance my mom went along too.)