Amazon, free shipping
I know I have seen this before a long time ago but wanted to update. I just ordered some items on Amazon that have the free shipping above $35. My total order was well over that amount but their system still added the shipping cost to my order when I would go to place the order. I called Amazon customer service and explained the situation. The agent stayed on the phone with me while I placed the order, then immediately grabbed it and took the shipping cost off. I'm pretty sure this will only work with things being shipped from the Amazon warehouse via USPS. I used my PO Box here for the shipping address.
Not a long time ago - July this year when I posted the same information: