Dh and I sent 15 gifts to a variety of children this year (mostly kids of friends who also sent gifts to our dc's). Have only received 4 thank you's. Our dc's thank you's were posted by the end of 2008. I don't even expect thank you cards but a text, phone call or email would be nice.
or do you reckon end of Jan is time after which lack of thank you's becomes rudeness?