I wish that, when I was younger, I had known then what I know now about finances. All the money that I wasted because I just didn't know any better.
The frugal "bible" for me is The Tightwad Gazette by Amy Dacyzyn. Recently, I read "America's Cheapest Family" by the Economides and got only one tip out of it. I was bummed and told my husband that I had wasted my time reading that book. He just said, "See, I told you that you're the cheapest person I've ever met. At some point, you just can't get any cheaper."
Now, I do have my splurges. I love good coffee with real cream. And I don't save and reuse foil or gift wrap.
We are not completely debt free yet but we're close. My husband's first wife died and when we got married he still had about $40K in medical expenses, etc., related to her. (She had kidney failure, had a transplant, it didn't work, more dialysis, then suicide.) We've almost paid it all off and also have a mortgage, which will be paid off in seven years if we don't move first. (We've been here 3 1/2 years and had a goal of paying off the house in 10 years.)
I'd love a mini farm with what I mentioned above and also a root cellar. I've always wanted a root cellar of my very own. And a summer kitchen. We figure that I have so many plans for our mini farm that we'll be happily puttering away on the farm until well into our retirement. And I think it will keep us healthier, since we'll have so much physical activity.
We're thinking meat goats, probably boer goats, as they're easier to handle than cattle. I would like to have one miniature jersey cow for milk products.