If you don't want to put the good2go pass on your I'd say don't. There aren't that many toll roads in WA ( to my knowledge ), but there definitely isn't anywhere near as many as the east coast, and I'm from Jersey. I'm not really sure how Good2go works, but EZpass which is what we use on the east coast has 2 methods of being placed on the car. 1 is on the front bumper by the license plate. The other is actuall inside the car, infront of the rearview mirror, which obviously isn't intrusive at all and is hard to notice.
Good2go doesn't have the windshield kind?
Audi B6 A4
- S O L D MK3 Jetta