On Sunday, the cost of a stamp is going up for the second time this year, jumping 5 cents for first class postage to 73 cents. You probably didn’t notice.

These tiny rectangles hold memory and mystery, and they will travel where you will not.

The US Postal Service is hiking prices on stamps, shipping and more.

You can buy postage stamps from the USPS, but there are other options when your local post office is closed for the day. Here's where to buy stamps.

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