The deadline to register to vote in Florida is October 10th, three days away. The deadline for a host of other states is one of the next seven days.
10/7: MS, NV, RI, SC
10/8: AK, TN, WA
10/9: AR, AZ, HI, LA, WY
10/10: CO, DC, FL, GA, IL, IN, KY, MI, MT, NM, OH, PA, TX, UT, VA, MO
10/13: ID, NC, NY, OK
10/17: MD, ME, MN, NJ, OR, WV
10/23: CA, KS, SD
10/27: AL, IA, NH, VT
Election Day Registration: ID, ME, MN, ND, NH, WI, WY
You can use GoVote to register, or at least get help completing the form you need to mail in. In Florida, the rule is that,
If this is a new registration application, the date the completed application is postmarked or hand delivered to a driver’s license office, a voter registration agency, an armed forces recruitment office, the Division of Elections, or the office of any Supervisor of Elections in the state will be your registration date. If this is a new Florida application, you must be registered for at least 29 days before you can vote in an election. If your application is complete and you are qualified as a voter, a voter information card will be mailed to you.
Mydem.com offers you a chance to check online if you are already registered, but they make you sign into the site first.
It could be an historic election. If they count the votes right, of course.