I have done work at a reduced rate for the Salvation Army, a women's shelter, and a Food Bank. Neither group cares who you are or what you do. Their only concern is if you need help. But if I am told that I owe a freebie, if they tell me I can take a tax deduction, if they pull the guilt trip, we are done. The other thing, is I do not help for free advertising or other b/s. I help because I like the org or their goals.