The above posts about ballot formats got me thinking about expanded opportunities for voting by mail. In 1998, my home state of Oregon became the first state to have elections conducted exclusively by mail, which has been a key factor in pushing the state's voter turnout well above the national average (participation here in the last two presidential elections has been in the 80% range). And if a voter misses the deadline to mail in the ballot, there are still plenty of convenient official drop-off sites (businesses, libraries, elections offices, etc.)
This article discusses how all-mail voting can indeed increase turnout - with several strong caveats, including the need for the elections office to send out reminders after voters receive their ballots. Like any other system of voting, there are pros and cons, but one major advantage to vote-by-mail beyond the potential for increased turnout is that polling place intimidation and voting machine tampering/malfunctioning are no longer a threat. Research varies on whether increased turnout actually benefits Democrats, but even a small uptick in voter participation very well could've made a difference last week - and I can see it making a helluva lot of difference in 2018.
I know people are reeling after last week's elections and are wondering how to effect some sort of change, but anyone living in a state where the option to vote by mail is limited or non-existent might want to grab the ear of their state legislator. Even more people just talking about it might be the tipping point.