I firmly believe that you get back what you give 10 times over.
I went to the mail today and was so very pleasantly suprised to find a package from a mail art friend. It had all kinds of wonderful bits and pieces. Something for every kind of art and mood imagineable. She sent it for no particular reason. Just a little "thinking of you" package. I love this kind of suprise and I like to do this sort of thing.
A month or so ago, I sent an email to a "internet" friend that I new was going through a very bad time. Just a little verse that I hoped would inspire her. I didn't hear from her, but assumed that she would contact me when she could. She emailed me today. It seems that she's been struggling with a life-threatening illness (and won).
She was going through past emails and found the verse I had sent her. It "really hit home" as she put it, and emailed me with a really nice message. This made my day also. I was so happy to have helped her in some small way.
So think about contacting someone out of the blue. It doesn't have to cost you anything. It doesn't have to be "big". Just a little "Hi, how are you doing" can make the world of difference to someone.
Hope you have a great holiday season.