I recall from the erstwhile RYS days, adjuncters (in Canada we're often called Sessional Instructors, Non Regular Instructors, and anything else that doesn't include the word "Professor" with a capital P, despite having to have a PhD, peer reviewed publications, an ongoing research agenda, and the qualifications to be put in front of a classroom) score academic work by picking up contracts.
If my own local survey is to be trusted, we're split pretty 50/50...those who teach to improve their chances of getting an academic job (poor mislead bastards), and those who take bullshit exploitative jackass teaching work so they can minimally maintain a university affiliation while they build a career elsewhere. Read my profile...I teach minimally so I can keep library access, God knows it wouldn't pay my mortgage and feed my child and me. My consulting practice is what affords any standard of living. Where do the rest of you sit? How do you keep a family afloat? Do you? What's your story?
(Long responses might warrant a new post, short response, a comment)