forever... I would simply retire early.  I would probly not stay in my current home tho simply because there would be not point.  I could sell it and live better elsewhere.
Now... before I reached this happy age... I rarely had more than one or two months worth of income to live on at the rate I was spending..   It was never a problem... something allways came up.  Allways worked out.
It does giove peace of mind tho knowing that the job or losing it is not a big deal at this point in my life.
lazs