Not counting my own welcome thread, a post in someone else's welcome thread, and a comment about an automatic birthday greeting (celebrating someone's 2009th birthday!), my first post on an actual "ish" topic was about paying off a mortgage as a contributing factor to self-sufficiency.
If you rent, you are committed to having an income forever to pay it. If you buy, you are committed to having an income to pay the mortgage, but mortgages eventually get paid off, and then you are home free. For being self-sufficient, owning is definitely better. The only issue is that it's an uphill slog to get there.
I bit the bullet and did the rat-race thing for quite a few years. My home strategy was: (1) rent while saving up a down payment; (2) buy the cheapest place I could stand to live in; (3) pay the mortgage down faster than the minimum rate (which is why it had to be a cheap place). The third point was the most important. Paying the mortgage down faster and especially doing so as early as possible in the life of the mortgage, saves a ton of money. As a result, I paid it off in only 11 years.
Owning a place mortgage-free is, for me, essential to self-sufficiency.
The first thread that I started was about rainwater collection.
We are trying to get our garden set up for growing most of our own food. Problem is, we get almost no rain in the summer, and our well doesn't produce enough water for the garden. On the other hand, we get lots of rain in the winter, so rainwater collection and storage is a no-brainer.
I've got 2500 gallons of storage on-line right now, ... blah blah, brag, brag...