These will always be valid for a standard letter, even if postal rates increase in the future.
Similar to Duane Reade, they sell booklets of 20. where to buy stamps in nyc
Some "Mom and Pop" shops keep stamps behind the counter. Just look for the official USPS "Stamps Sold Here" decal in the window. 💡 Pro-Tips for Buying Stamps in NYC These will always be valid for a standard