I have a little tip that I often hear, seldom follow, but wish I did more often. Write down what your kids say. Time just moves so quickly and you lose those little gems in a heartbeat. If your children are anything like mine, the stuff that comes out of their mouths is often hysterical, occasionally disturbing, always interesting and all too often it holds a mirror up to you.
I have a family blog that I try to update with these little bits of priceless memory, but I'm oddly terrible at keeping up with it. Especially since starting this blog, I've ignored my little family blog a lot. Believe me, I'm totally ashamed of this fact! I feel terrible because it is not only a connection with far-flung family and friends, it is like a family diary. I would love to someday use one of those services that turns your blog into a book because it would be a little history of us.
Do you have a place where you keep these memories? Do you use video? Stories? A diary/journal? Scrap pieces of paper all over the kitchen? Perhaps a good resolution this year is to be better at recording these memories. Sounds like a plan!