I've had good results with St Vincent de Paul, Purple Heart and the Kidney Foundation. Local numbers, most will pick up from your porch or garage when they say they will. You will need to be home if you want the tax credit slip though.

I have two problems with both the Salvation Army and Goodwill. First, they don't always pick up when they say they will. I came home to ripped bags on my doorstep where the squirrels decided to investigate. And two, there were some rumors during the Katrina time frame of warehouses overflowing with stuff they were 'too busy' to distribute.

Good Luck!