Edit: Even if you already registered, check your registration. The bad people have been deleting anyone they can. Even if you're not in a swing state, vote. Find an activist group (check !inperson@slrpnk.net) to join up with, in case something really bad happens. If you can, volunteer to help with the election.
Do not assume you're still registered just because you voted in the last election. GOP fuckery is higher than it has ever been. They are absolutely cheating, so we need to run the score up like it's never before.
2024 is the year we put these fuckers in their place. Glass the GOP.