Realcent.org

1st class stays at .55, 2nd ounce .20

FR envelpe $7.95
SFRB $8.45
MFRB $15.50
LFRB $21.90

https://pe.usps.com/resources/PriceChange/January%202021%20-%20Notice123.pdf

Postal rate increases track USD:SDR pretty closely.
As the dollar falls, postage goes up.

Maybe they need a floating day to day price structure.

Postcards are now $0.36 now, too.