Thanks, Jokir. My dd is 7. I hate the thought of telling her that Santa isn't real but I think that she will be telling everyone that if I don't say something.
Coll, I've always told my kids the exact same thing - that if Santa is in your heart, then he is real. My kids are so different - my son (13) wants to believe that Santa is real and would never tell anyone that Santa isn't real because he would never want to hurt anyone's feelings. My dd, on the other hand, is already a realist and wants proof for most stories that she is told.
If she asks again, I will tell her that the kids couldn't write to him and that's why others help, too. Good Answer!!
Thanks for the wonderful advice from both of you!!