Check out BEST to see which members are donating proceeds from their items to different relief efforts. Additionally there is this list. Any more vendors, please comment.
Also this list of local DC area restaurants and stores donating a portion of proceeds from lunch or dinner today to Haiti relief. Or you could stay in, eat PB&J and donate the $60 you would have spent on dinner to the Red Cross or Doctors without Boarders or other organizations - again, if you have ideas, put it in the comments.