Do you buy birthday or Christmas gifts for your pets?

Every holiday season, I see these displays at Walmart of doggy jackets, doggy sweaters and Christmas stockings for dogs.
I just saw a video yesterday of a dog having a birthday party, complete with a dog food birthday cake that had mashed potato icing.

Do you ever have celebrations like these with your pets? How far do you go for your animals? The most I do is buy dog treats and edible things for my dog. I don't think he would understand those pink doggy Christmas stockings at Walmart, but he understands food.

Do you think dog gifts are a waste of money? I personally would rather make a donation to the Humane Society than buy a Santa outfit or "I'm the birthday dog." shirt for my dog, but that's just my opinion.