As an eBay seller I use this class of service quite a bit to ship small items. As of this year the rates went up from $2.67 to $3.50 for 1oz package! According to stamps.com https://www.stamps.com/usps/postage-rate-increase/ most services increased a few cents, but I wonder why such a hefty increase for First class 1oz. packages? I know the post office is strapped for cash but come'on man 31%.