Not to be cynical here but I think a HUGE portion of my income goes to the less fortunate. I just don't have discretionary control of it. Our tax dollars are being spent for illegal immigrants, natural disasters both here and abroad and countless other "needy" things. If I look at it that way, I bet I give $5000 - $10,000 a year to the needy.
Now on a personal level, I don't talk about where I spend my money but since this is gl4x4, I did give a couple hundy to silverxj's breast cancer walk.