In October 2011 Shipito has opened a fully functional warehouse in Oregon. So you can use the new Oregon address for making purchases without paying the sales tax (since there is no sales tax in Oregon). The Oregon warehouse allows to consolidate packages, send them via USPS Priority Mail, USPS Express Mail, so should work fine for you in Russia.

Note that Shipito services are 10% higher in Oregon. If most of your purchases are made from online stores where you pay no sales tax, it may be cheaper sense to use the Torrance warehouse.