Never take your children Christmas shopping, with you, for other people! They will covet the gifts! :)
I took Heath to Wal-Mart to get a book for his gift exchange at pre-school and he picked out a Wonder Pets book. He was pretty excited to get a gift for someone! He read it the rest of our shopping trip. When we were done and I put him in his car seat I asked him if he was going to give that book to someone in his class as a gift and he replied, "No, it's mine!" Obviously that someone we were getting the gift for was HIM!