1. Never, Never, Never, send a pre-printed thank you card. When you send a pre-printed card, you are telling the person receiving the thank you that their gift didn't mean enough to you to even receive a mention in your note. A warm personalized, handwritten note, regardless how brief, tells the guest how much you appreciated the gift and how it will be cherished for years to come. Handwritten notes express sincerity.
2. Be sure to send thank you notes to friends and relatives who arrange showers and parties for you. It is appropriate to thank them for the party or shower in the same card you send thanking them for their gift.
3. When you receive more than one gift from someone, each gift must be recognized with its own thank you card. If you receive a shower gift from a friend or relative and then, three weeks later, receive a wedding gift from the same person, it is not appropriate to thank them in one card. Shower gifts should be acknowledged within ten days of the party and wedding gifts within two weeks after returning from the honeymoon. Wedding gifts arriving in advance of the wedding, should be responded to immediately, so that an extended period of time does not pass between receiving the gift and it's thank you.
4. Be sure to put your new return address on all thank you cards. Your guests will appreciate having your current and correct address.
5. Although colored ink is readily available in your favorite stationery store today, it is still more appropriate to write your notes in dark blue or black. It is more easily readable.
6. When writing thank you notes, never start the note with "I." Always use "you" more than "I" or "me" in the note.