Many people are wanting to work less and have more money. The best way to do this is by being frugal, living cheaply, even below your means, while putting money aside. It can be done, even if you are making only minimum wage. I know because I bought a house while making only minimum wage.
Do Not Have Children
It is a toss up, do you want to have money, or a family? Kids are frightfully expensive. Costs include diapers, clothing, furnishings for their room, a larger house, a bigger car (especially if you have more than two), toys, baby sitting, education, food, toiletries, higher bills, and so forth. Many people grossly underestimate the costs of having children.
For the average family in the United States, the costs of raising one child will be over $200,000 from birth to age 18. Additionally a responsible family would also save more to help pay for their child's further education.
As such the number one frugal thing a person can do is to not have children, or at least not have many children.
Live in a Small House, or Apartment
Bigger homes result in bigger expenses. Most people only think of the cost of the home, or the rent, but larger accommodations cost more to heat, use more electricity, and often require more furnishings and useless décor items. Very frugal people opt for living in a small home and do not allow themselves to accumulate “junk” to fill it. Also a small closet (hopefully) means you spend less on clothing.
But... Have a Big Yard and Grow your Own Food
If possible you want to grow some of your own food, potatoes, carrots, zucchini, and beans, are some of the easiest things to grow. You can also grow your own strawberries, raspberries and fruit, depending where you live. For growing fruit you can save money by buying your fruit trees at the end of the season when they are on sale. You might think this is silly because you will not get any fruit that year, which is true, but when you do buy fruit trees earlier the nurseries often advise you to pinch any flowers off that year and not to let it fruit anyhow, but rather that it should establish good roots.
You can also keep your own chickens for eggs, and in some cases you can raise your own chickens, and/or rabbits for meat.
Put Nature to Use
If your house has big windows, plant deciduous trees outside to keep the sun out on hot summer days, when their leaves fall off they will let the sun in during the winter.
Open windows on both sides of your house on hot days to allow the breeze to cool your home rather than using air conditioning.
Evergreen shrubs planted next to your house will act as insulation, both from the summer heat, and from the cold winter weather.
Live Close to Work
Or work close to where you live. Your daily commute wastes gas and time. If you can live in a central location, close to work, schools, and (yikes) even shopping, you can save a lot of money on transportation. Ideally living someplace where you can walk to work, or bike to work, can reduce a lot of unnecessary expenses, and save you a small fortune.