I am not in WA, but when I read that you are unhappy with 5 day postage times from the east to west coast I thought you must have made a typo. I am happy if I get my post in a week from the same state, and I won't even begin to worry until at least a week or ten days have gone by.

You have been very lucky with your post it seems. 

Anyway, not trying to take away from your idea, it just raised my eyebrows.