I have a number in my head. When I hit it, (I don't think I ever will) - I will cease working. I will devote myself entirely to the pleasures I take in life - seeing bands, taking photographs, writing stories, helping friends, being involved in community.
That number is "enough". I should start to "work backwards" from that number, but that makes it feel like an unsurmountable task.
I've met people that make in a day what i make in a year, and i've heard them complain about being broke.