My wife and I have always been frugal, without depriving ourselves of pleasurable things. If we can't pay cash, we don't buy. We had a mortgage on our last place, but paid it off early, and have not had any debt for about 25 years, now. Why pay interest on debt if you can pay yourself instead (via a retirement account, for instance)? I love gardening and canning, and things that don't can well can often be put in our chest freezers (we have 2) and be used throughout the winter. That saves a LOT of money. We had a bumper-crop of wild blackberries a couple of years back, and just today my wife took the last gallon bag out of the freezer. For years, we never had cell phones, unless I needed one for business. Now we have two prepaid Trac-Fones that keep us in enough minutes for our calling - $100/year/phone. Just make sure to buy a phone model that comes with double minutes for life (Trac-Fone always has at least one in the line-up) and you're set. No cable TV and no satellite dish - just broadcast TV and NetFlix rentals. I split and stack firewood for heating, and only use the furnace if we are going to be away for an extended time. I had the oil tank topped off last fall - we used just 100 gallons over the past 3 winters. Don't drive if you don't have to. I took my Subaru Forester in for its 3750 mile check up one year after buying it. It now has about 4400 miles on it. The dealership was sending me notices every couple of months saying that the Forester was "overdue" for its first maintenance - what do they know? Regarding food - we both cook from scratch. It's a whole lot cheaper to start with pasta, rice, beans, etc, and build soups, casseroles, etc from there, using vegetables that we have frozen, fresh home-grown garlic stored in our cold cellar, etc. We buy meats, cheeses, poultry, etc, but very few vegetables because we've got a lot frozen from the garden. We have a newspaper subscription, but the paper serves another purpose after it has been read - roll the section up into "sticks" to use as kindling for fires in the wood stove. Due to high ash content (carbonate and clay) most paper is unsuitable for kindling, but newsprint is generally quite clean. My wood is almost 2 years old before I burn it, so it is very dry and burns hot and clean. I haven't had to clean the chimney at all since the first winter, when I was late getting wood under cover. We'll probably burn about 4 cords this winter. At $165/cord, that's pretty cheap heat, and we keep the house nice and warm.
None of the things we do have been new developments due to economic pressures. We have always been cautious with money. We bought this house and moved out of our old place and put it on the market because we could see a crash coming, and were likely to get a fair price for the old house due to unrealistic housing prices. Also, the town was deferring maintenance on roads, while making cosmetic "improvements" to the business district and raising taxes on home-owners. My friend (who was also the real-estate agent that listed our house) followed suit and put his old farm-house on the market, and he and his wife bought a very modest place a few miles from here. Some of our friends were buying or building in the boom market, and thought we were nuts for down-sizing so drastically. They don't think so anymore. Some of them are underwater on their mortgages and if either loses a job (most are 2-income couples), they'll be in big trouble.
Advice for the youngsters - if you are going to buy something expensive, buy durable high-quality stuff that will not depreciate fast. A huge plasma TV is not an investment in any sense of the word. It depreciates the moment you leave the store and will be supplanted in a few years by better technology.
I splurged and bought a 30-hp Kubota tractor/loader and a nice 6' PTO tiller attachment. That tractor has made my life a whole lot easier in some respects and will hold its value because I take very good care of it. I have been able to build access roads on my property with only the cost of diesel and raw materials (gravel, stone, etc) and my time. Sure beats paying some landscaper $75/hour to do the work - plus it's fun.