i try to be rigorous with my thank you notes, and i'm proud of this. but i read this carolyn hax advice column today, where she points out that while thank you notes are still a good idea, we should really rethink the whole concept of gift-giving, given that stuff is much easier to acquire these days.
it's an interesting point! especially for the adults in my life (because it's still fun to buy toys for kids most of the time). most adults i know can buy what they want or need whenever they want, and do a much better job than i would at getting exactly what they want. so i think it might be a better idea to skip the gift-giving and send a card, or maybe donate some money to charity in someone's name.