I think that thank you notes are so important. When someone gives you a gift or does something nice for you like bring a meal when you have a baby, I think it is so nice to send a thank you note. They don't have to be long drawn out paragraphs, just a couple of sentences. They don't have to be super deep, just something simple to say "Thanks."
I think it is really important to teach our children to write thank you notes. This year since Luke can write, I decided to have him help me. I pulled out some handwriting sheets and had him put the person's (or in this case persons') name(s) at the top and sign his name at the bottom. Then I filled in the message. As he gets older, he will be writing the notes all by himself.
The ironic thing is that our weekly Bible verse is "be thankful" (Colossians 3:15). It was nice to have a tangible way to teach him what thankfulness is and how to show it.
Here is one of the thank you notes we wrote: