Wal-Mart just bested Amazon Prime - truly free shipping is here:
Bottom Line: So several months ago Wal-Mart attempted an Amazon-esqe subscription based model that would offer unlimited shipping without additional costs. It didn't really gain traction. As a result Wal-Mart just made something worthwhile happen. Truly free shipping for all orders over $35. That's it. What's more is that in the last two side by side comparisons on like items Wal-Mart.com's pricing has beaten Amazon's pricing. So no $99 fees for "free shipping" and better prices?
It might be worth a look...