Hi. My American brother-in-law's parents live in Arizona and they are happy to receive stuff and post it to me. Normal postage is quite reasonable. At the moment I have a great second option in that my sister and the Bro-in-law have just gone over and can bring some back, if they can't bring it all back they will post some of it. It's my 50th birthday soon so they will throw in a birthday card and I should avoid customs tax and GST. So I have been spending up slowly over the last 3 months when items I want go on special, and as you may know, when Americans discount, they really discount ! Not a lousy 10% off they do down here.
I have done this while in America and you should try and do it. Do all your research beforehand on what you want to buy and who off. If you can come up with an address of someone in Seattle make all your purchases quickly (on the one day) and consider doing it over the phone and get it all sent to the address. I wonder if someone on BPL could help.
Also, do you know there are some good stores in Seattle? A huge REI store, also TNF and others. If you are not necessarily trying for stuff on special then see what you can get at REI.
Sorry I rattle on for so long !