A little know-how avoids cards coming back for extra postage.
Good to know
- Check current postage rates with the U.S. Postal Service; they change
- Square, rigid or lumpy envelopes usually need extra postage
- Heavier cards with inserts may need more than one stamp
- Send international mail early, and check the international rate
- A Forever stamp stays valid for First-Class letter postage even after prices rise
General information only. The Thoughtful Porch isn't paid by any card or stationery brand.