When in doubt, it's better to write one than not.
Yes, these people are now members of your extended family and it is not only nice, but polite to acknowledge their part in the festivities.
No, guests that attend a wedding do not send thank you notes and it's the bride and groom that will send thank you notes to their guests for attending and also thank them for the gift.
Any gift received as a part of the wedding process should be acknowledged, at least with a thank-you note, but a small, and memorable, token of your appreciation would certainly be appropriate.
A lovely , heart-felt card will do. A private , new in-laws only luncheon or dinner would be even better. Might as well develop what we hope will be a lifelong relationship, possibly with shared Grandchildren. Kids like it when all the Grands have a good relationship.
Either a mother; mother-in-law; sister or good friend has a bridal shower and does not require a hostess gift. If the bride wishes to thank the hostess she could send a thank you note along with an arrangement of flowers.
If you really want to but it would be rather silly. Would you then expect the recipient of your thank you note for their thank you note to write a thank you note for that too?
You can end a thank you note also by the words thank you or thanks.
(what do you want the thank you note to be about..?) Dear _____, Thank you for ________ i really appreciate it, and ______________________ _________________________________ ____________________________________ _____________________________________ ______________________________________ (Blank spots are whatever you want to write there)
No, the phrase "thank you note" is typically not hyphenated when used in a sentence.
well usually people write a thank you note when i went to my scholarship interview one week later a wrote a thank you note.
The cast of Thank You Note - 2008 includes: Kristy Linderholm