Bah Humbug!

The holidays are over! YEAH!! I was very stressed and down about buying Christmas gifts for my children. I could afford none, zilch, zippo. Last year we were on a wish list from our church by invitation, this year we were not. I tried to justify my situation many ways. They have enough toys. They have food to eat, clothes to wear, a warm roof over their head, Christmas is NOT about the gifts you get. They will get presents from other agencies, maybe not what they want but so what.
How do you explain to your eight year old and three year old that Santa isn't quite coming the same way this year? I feel guilty even thinking these thoughts but I also feel like I am letting them down. There is so much we do have even though we are struggling.
I was never so sick of people asking me am I done my shopping? Yep I am done shopping because I did not do any OK? We are not doing without (in my 13 year old's mind I am sure we are) but the future is so uncertain.