Does anyone use PetSmart Doggy Day Camp? If so, what kind of thank you gifts do you give, and how often?

There are so many people that work in the PetsHotel and help take care of our pooch that I'm struggling to find good ideas that don't seem cheap, but don't cost a fortune. So far we've given a basket of assorted cookies and brownies along with a card featuring a picture of our little girl.

They are all so good to our little girl that we want to show our gratitude every so often.

Thanks, in advance, for all your ideas, and Happy 4th!