How do I do it? Just go to the website of your county supervisor of elections and click on the “vote by mail” icon. On both the Broward and Palm Beach county election supervisors’ websites, it’s in a menu bar toward the top of the page. You’ll need to put in a request by 5 p.m. Oct. 31, and your filled-in ballot must be delivered no later than 7 p.m. Nov. 6. If you get a mail-in ballot on the last day, that leaves very little time to fill it out and mail it back. If you didn’t fill in your ballot until Election Day, you can still drop it off at your county supervisor of elections office. You can even drop off a blank mail-in ballot at your polling site and vote early or on Election Day. You just can’t vote more than once.