I am right there with you. Some years if it weren't for my kids I would skip Christmas all together. Especially when I put up the tree cause alot of the ornaments on it are gifts from my mom. I have an ornament that I hang up for my dad - it was a gift I had gotten for him for Christmas one year - he passed away before I could give it to him. gosh, that was 16 years ago and I still cry when I put it on the tree.
I do like to take out some of my mom's Christmas stuff and tell my kids (18 & 15) the story behind it. It does help a bit to remember happier times when I was a kid.