postage calculation

March 14, 2025

macbook

How many forever stamps on a 9×12 envelope? This seemingly simple question delves into the fascinating world of postal regulations ...

February 10, 2025

macbook

How many forever stamps for 9×12 envelope – How many forever stamps for a 9×12 envelope? That’s the burning question ...

January 11, 2025

macbook

Can I use 2 forever stamps for extra postage? This question, seemingly simple, opens a door to a fascinating world ...