I can be very Grinchy when it comes to my kids' toys. It's one of those "Well, when I was a kid..." things - because when I was a kid, you know what I had? A cabinet for my toys, and exactly the number of toys that could fit into that cabinet. Maybe it was the fact that we lived in a small apartment or maybe my parents were just Grinchy, too, but I'm totally of the school of thought that when it comes to toys, less is more. You spend more time with each one; you get more creative with how you play; you create actual relationships between yourself and your possessions, a la the Velveteen Rabbit (sob).
Which means that the overflow of stuff that my kids get every Christmas, what with the multiple Christmases celebrated at multiple locations throughout the country with multiple pockets of relatives makes me, like I said...
Grinchy.