What happens if I put two Forever Stamps on an envelope?

For every ounce beyond the initial one, the postal service charges a significantly lower rate of $0.28. This is a significant savings compared to the $0.73 required for a one-ounce letter, highlighting the inefficiency of using two Forever stamps for heavier mail.

In the case of a 2-ounce letter, the total cost should be $0.90. This includes the base rate for the first ounce, plus the additional fee for the second ounce. However, if two Forever stamps are mistakenly used, the sender ends up paying more than necessary.

To ensure cost-effectiveness, it's essential to weigh the mail piece accurately and apply the appropriate postage. This involves calculating the total weight and determining the necessary postage based on the postal service's rates.

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When sending heavier mail, it's crucial to avoid the mistake of affixing two Forever stamps. This approach, while seemingly straightforward, can lead to unnecessary expenses. Instead, understanding the cost breakdown for additional ounces is key to saving money.