Modern Transit Systems
One very useful way to use a progressive state income tax, would be to help provide funding from the State of Washington for modern transit. Two examples are King County Metro and Sound Transit.
Transit riders can purchase an ORCA card and use it to pay for their ride on both King County Metro and Sound Transit. An ORCA card works much the same as a bank debit card. You can place money into the card and each time you use the card the balance of the card is displayed.
1) King County Metro, http://metro.kingcounty.gov
2) Sound Transit, http://m.soundtransit.org