I know it may be too late for your trip, but in case anyone else is looking....

Tom Fitzmorris, New Orleans' resident food critic, has a website www.nomenu.com which has a running list of open restaurants, as well as reviews and other food-related info.

And regarding the donation of clothes- to my knowledge, no charities are currently accepting b/c they've been overwhelmed. Normally, my charity of choice is the Junior League Thrift Shop on Freret.