IMO, JW's go door-to-door for two reasons.
1. That's what you have to do to gain salvation as per WTS (selfish)
2. To genuinely help others (unselfish)
So, for those who did it for reason 2, upon leaving the WTS, what have you done to replace preaching to assist your fellow man/woman?
Mrs. Kwin and I have been discussing this recently, and have a few thoughts on what we may do, but we're still open to ideas.