If you are ordering product(s) that weigh less than 13 ounces, any seller in the USA can get you 2-day ("Prime") shipping via USPS First-Class mail for between

If you are ordering product(s) that weigh less than 13 ounces, any seller in the USA can get you 2-day ("Prime") shipping via USPS First-Class mail for between ~$2.50-~$4.00 depending on weight. Almost all Prime products are marked up $2.00+ over the non-Prime listing, plus Amazon is taking a 15% fee of the purchase revenue. They don't actually have any edge for low-weight items as far as I can tell. If you impulse buy 6 2oz items, Amazon is certainly convenient, but you'll be overpaying an extra $10+ for shipping if Amazon doesn't package them all in one bubble envelope. I've been exclusively an Amazon customer for basically my entire life because I thought ebay was scammy and confusing and I thought no other retailer online could compete with Amazon's shipping. Now Amazon is just as scammy as ebay and I realize that actually most other retailers can compete in various niches. Now I only buy from Amazon when I absolutely have to or I'm impulse-buying, and I'm pretty close to canceling my Prime account. By the way, it turns out ebay is pretty awesome. Ebay is way cheaper for all commodities.