Another seemingly lost art is the "Thank you note." People recieve gifts for Christmas or a birthday or some other occasion and rarely write a thank you card. Maybe I'm being old-fashioned but I believe that unless you live in the same house as the gifter you should write a short note saying thanks. It's polite and the gifter knows you really mean it because you took the time to put down your gratitude on a card.
Writing about it here on my blog makes me wish I had someone to write letters to. I realize that with social media the way it is these days it kinda makes a letter a moot point but I still think it would be fun. =)