Mailing in that registration? Do it quickly

Washington residents who are eligible to vote but haven’t registered have until Saturday to mail in their registration forms, and until Monday to sign up online.

The final deadline for mail and online voting is Monday, but that’s Columbus Day, a federal holiday on which post offices will be closed. Mail-in registrations must be postmarked by Monday, but if they don’t get postmarked Saturday, they won’t be postmarked until Tuesday.

It will be possible to register online through Monday by going to the Secretary of State’s web site . Residents who miss that deadline can still sign up in person at a county elections office until Oct. 31.