Since I spend most of my time these days out of the country, everything I buy comes off of internet sales/ebay. I'm sure shipping averages out to $7 or so per order, say roughly 2-3 orders a month. But to be honest, I never actually stress out about it. I only look at the total price and compare that to the money I saved by not buying retail. That savings makes shipping look relatively insignificant and just part of the discounted price.