None of what I said
conflicts with "focusing exclusively on products," but since you want more background information, here it is.
How did we keep a roof over our heads? The old fashioned way: working our asses off, saving, and with the cultivation of multiple income streams, as I mentioned above.
1. We did some consulting projects that we wouldn't have otherwise taken on, and saved the money. We raised our rates for a couple of these clients dramatically, because they absolutely required us, and the projects had tremendous time pressure.
2. My husband and I wrote and sell an ebook: http://jsrocks.com
3. We also developed a 1-day and 2-day variant of a JavaScript workshop, with a different angle than all others, and have given it twice times to individuals (selling tickets) and twice to corporations in 2010. We originally developed this course in Sept 09, and we've heavily revised and expanded it, but it's the same "product" we're taking around the world. Just like with the consulting, we saved the money. http://jsmasterclass.com
4. I'm teaching a course on how to bootstrap your first product to earn your first $1000 - http://yearofhustle.com. It's a 12-week course and the first round is just about over now. I tested the idea by doing a 3-hour teleconference call and selling tickets for $100 to start with, and the main feedback customers gave me was "MORE!" Then I... you guessed it... saved the money. (This one is just me and a friend, not with my husband.)
If things got bad, I would take on more consulting work, bust ass, and save again. Although I don't think I'll ever have to do that again, given the success of my or our various infoproducts/classes/training courses.
It's simple: I refuse to do anything but bootstrap. I will never take a penny in venture capital. I will never let the outside demands of another person screw with my career again.
I am also fully committed to doing whatever it takes to succeed, and that means being my own angel.
So when I decided those things, I sat my ass down and did my best to figure out how I could get money, fast, and with the least amount of effort.
I certainly won't fail because I believe, on some level, that there is something so special about me that I deserve to be able to work on just one thing and have my bills taken care of.
Enough information for you?
EDIT: By the way -- yes, I'm not doing it alone (and my husband is no slacker in the code department), but it's my grand plan. And, more importantly, this process is accelerating, because we're using the money earned/saved to pay a freelancer to help us develop our 2nd SaaS product, which will launch in September.
EDIT AGAIN: We launched Freckle in Dec 2008, by the way. We/I wrote the book in 2008/2009 (started selling as a beta in Jan 2009). We developed the course in Sept 09. All while heavily consulting.