Since Washington is one of three states (Oregon and Colorado are the other two) that vote by mail, you might want to make sure your ballot has been counted!
Most counties allow you to track your ballot each step of the way:
To track the status of your ballot, go to the official website of your county auditor and enter the information:
Click here for King County
For other counties including Pierce, Snohomish, Thurston and Kitsap, click here to go to the state's web site and click on "MyBallot"