Forever stamps to jump to 55 cents, biggest increase in USPS history

``The Forever stamps aren't the only price changes announced by the USPS. Priority mail prices are also increasing. A small flat rate box will now cost nearly $8, instead of $7.20. The large flat rate box will jump from $18.90 to $19.95, according to USPS.'' -- The 1991 increase (from 25 cents to 29 cents), was actually bigger percentage-wise, but still. There's no inflation!