The Lee County Supervisor of Elections website has a wealth of information about voting in the county.
Registering to Vote
This page on the Lee County site provides information on registering to vote. It describes who is eligible to vote in the county, and provides a list of places where you can register to vote.
You can also register to vote by filling out a form at this page on the Florida Elections website, and mailing it in. (The same form can also be used to change your name, address, and party affiliation; update your signature; and request a replacement voter registration card.)
Absentee Ballot Information
If you prefer to vote by mail, you can request a "Ballot by Mail" (absentee ballot) by calling the Absentee Office at the Supervisor of Elections at 239-533-6919. The instructions on this web page tell you what information you need when you call, so you might want to read it before you call.
Checking Your Voting Status
You can check the status of your voter registration and absentee ballot requests and votes at this page on the Florida Division of Elections website.