Allow me this brief moment on a soapbox.
You may not realize it, but the weeks following Christmas are especially difficult for the homeless. It's wonderful that we're likely to be in a giving mood during the holidays, but it can easily (understandably, perhaps) slip our minds once the lights are taken down and Santa disappears from the shop windows.
So, please keep the homeless in mind during the rest of the winter. It gets cold at night even in California.
I speak from experience.