I would never expect a thank you for a card, although having said that, most of my friends do say thankyou via e mail ...as do I ....just lately, I have had La Poste return cards undelivered ...I e mailed my friends to ask if they were at home at the time and one had been on hols and one young couple had moved ...they did tell me they were moving but at the time didn't have a date ! The card was posted with a parcel containing birthday gift of perfume and a silk scarf (the recipient is only 24) ....I e mailed her and she was terribly embarassed she had not let me have her new address (in Germany) ...so I re sent the parcel (French equivalent of registered post) so it cost me 24 euros ..but she loved it and thanked me for it, as she always does ! My daughter, on the other hand never thanked me for anything ...money, her car, university fees, money towards a house, clothes, paying her rent at uni .....but I just looked on it as well, she is my daughter and I am happy to give it whilst I could (can't now !) ....when she was little, a game we had was to write all the thankyou letters before Christmas, addressed to everyone we knew who gave her a prezzi ....she thought this was quite funny and happy to do it ! ....of course, she had to say 'thank you for the present\ as she didn't know what it would be ! I did this for my wedding presents as well ! .....might be useful to make a template of a thankyou letter which can be printed off when required for amusement,,,you can add personal touches from online internet things like pictures of flowers, cats, etc etc ! ..if you don't need to send a handwritten note !