Now that I have some land I'm trying to learn to grow some of my own food, and I already round up the mortgage payment every month even though money is super tight, but if I get $ 100k extra in writing income over the next however many years, I could pay off the mortgage, get proper insulation for
this drafty old place, and put solar panels on the roof, at which point I could live comfortably on about $ 1000 a month (except for the unexpected stuff), so that is my current dream.