To aid in penning prompt replies, have note cards or stationery and postage stamps on hand, and address and stamp the thank-you note card envelopes in advance. (This is a task moms can offer to help with.)
Time frame for writing thank-you notes: As soon as possible, and always within three months of receipt of a gift--at most.
Grooms write thank-you notes these days, as well.
It's inappropriate to send preprinted thank-you cards with no personal message added.
The couple should never let on if they dislike a gift. When writing a thank-you note for a gift that's been exchanged--either because it's a duplicate or just not desired--they should simply thank the giver for the original present. There's no need to mention that the gift has been exchanged for something else.
Excerpted from
Emily Post's Wedding Planner for Moms by Peggy Post © HarperCollins Publishers