: Members of Costco or Sam's Club can often find rolls of 100 stamps for a few cents below face value (e.g., $77.75 instead of $78)

: Buying a roll of 100 is generally the most efficient bulk option, though sheets of 20 offer more decorative designs, like the Wedding Blooms Stamps Go to product viewer dialog for this item. ($21.40 for 20), for a slightly higher convenience cost.

: Elements like wax seals, ribbons, or buttons add a "non-machinable" surcharge (roughly $0.49) because they cannot be processed by standard sorting machines.

before scheduled USPS rate increases. Since they never expire, purchasing them at the current rate (e.g., $0.78 in early 2026) protects you from future increases (to $0.82 in July 2026).

: If you prefer physical RSVPs, using a postcard instead of a card-and-envelope combo uses a Postcard Stamp Go to product viewer dialog for this item. ($0.61), which is roughly $0.17 cheaper than a standard Forever Stamp Go to product viewer dialog for this item. Avoiding Hidden Postage Fees

: Eliminating physical RSVP cards and envelopes can save in postage alone for a 150-guest wedding.

Extra costs often arise from non-standard invitation designs. To keep postage at the base rate: