The Billie Cash law
Payyourselffirst.
Build the wall.
Gucci tells strangers you have money. The wall keeps you safe when the rain comes. Before the landlord, before the store, before the club: one brick goes on your wall.
I. The law is older than you
For every ten coins, keep one.
In 1926 George S. Clason put the whole thing in one book, The Richest Man in Babylon. One rule holds it up: a part of everything you earn is yours to keep. You don't keep what's left over. You keep it first.
“I found the road to wealth when I decided that a part of all I earned was mine to keep.”Arkad · The Richest Man in Babylon, 1926
II. The rain is not a maybe
A third of grown adults can't cover $400.
When a surprise $400 bill hits, about 37% of U.S. adults couldn't pay it with cash on hand. The car, the tooth, the vet, the layoff. The weather always comes. All that's up to you is what it finds when it gets here.
Source: Federal Reserve Board, Economic Well-Being of U.S. Households in 2024 (SHED, May 2025): 63% would cover a $400 emergency expense with cash or its equivalent.
III. The bag or the wall
Same $1,000. Two different men.
One man buys the bag and the other lays bricks. The bag can't pay a hospital bill, and in ten years it's last season.
| $1,000, one time | 10 years | 20 years | 30 years |
|---|---|---|---|
| The bag | $0 | $0 | $0 |
| The wall, saved at 4% | $1,480 | $2,191 | $3,243 |
| The wall, invested at 7% | $1,967 | $3,870 | $7,612 |
Illustration only, compounded yearly. 4% is about what a high-yield savings account paid in 2025. 7% is a long-run average for a broad stock index fund. Neither is guaranteed. Markets fall, and rates move.
IV. Brick by brick
$50 a week. Let time do its thing.
You don't have to be rich to build a wall. One brick a week is enough, as long as you never miss. Move the slider and watch what time does with it.
| $50 every week | 5 years | 10 years | 20 years | 30 years |
|---|---|---|---|---|
| Under the mattress | $13,000 | $26,000 | $52,000 | $78,000 |
| Saved at 4% | $14,385 | $31,954 | $79,616 | $150,708 |
| Invested at 7% | $15,553 | $37,618 | $113,337 | $265,744 |
Illustration only, compounded weekly, before taxes and fees, not adjusted for inflation. Not financial advice.
V. Your wall
How long until you're covered?
Every brick is one week's deposit, and 52 of them make a year. Put in what it costs you to live each month, and you'll see when each layer of the wall goes up. This counts cash only, no interest.
Whole wall = six months covered · year one builds 14%
$2,600
On your wall after one year
VI. The seven cures
The Babylon blueprint, rebuilt as a wall.
Clason called them the seven cures for a lean purse. Every one of them is a layer of the same wall.
| The cure, 1926 | What it means | The wall |
|---|---|---|
| Start thy purse to fattening | Keep at least one coin in ten. Before anything else. | Pay yourself first. Brick one, every paycheck. |
| Control thy expenditures | Your “needs” grow to eat whatever you make, unless you stop them. | Gucci waits. The wall eats first. |
| Make thy gold multiply | Saved money should go to work and earn more money. | Bricks that lay more bricks. |
| Guard thy treasures from loss | Never chase the big promise. Protect the principal. | No get-rich-quick. A wall doesn’t gamble. |
| Make of thy dwelling a profitable investment | Own the roof over your head. | The wall around the house. |
| Insure a future income | Provide for the day you can’t work, and for your family. | The rainy day, planned for. |
| Increase thy ability to earn | Get better at your work and the coins get bigger. | Bigger hands lay bigger bricks. |
VII. From the book
The Richest Man in Babylon.
“A part of all you earn is yours to keep.”
ArkadThe Richest Man in Babylon, 1926“For every ten coins thou placest within thy purse take out for use but nine.”
The first cureStart thy purse to fattening“Wealth, like a tree, grows from a tiny seed. The first copper you save is the seed from which your tree of wealth shall grow.”
ArkadThe Richest Man in Babylon“What each of us calls our ‘necessary expenses’ will always grow to equal our incomes unless we protest to the contrary.”
The second cureControl thy expenditures“Gold cometh gladly and in increasing quantity to any man who will put by not less than one-tenth of his earnings to create an estate for his future and that of his family.”
The first law of goldThe Richest Man in Babylon“Better a little caution than a great regret.”
The Richest Man in Babylon“Opportunity is a haughty goddess who wastes no time with those who are unprepared.”
The Richest Man in Babylon“Where the determination is, the way can be found.”
The Richest Man in BabylonVIII. The men who built walls
They all said it. Different words.
“Do not save what is left after spending, but spend what is left after saving.”
Warren Buffettattributed“Beware of little expenses; a small leak will sink a great ship.”
B. FranklinThe Way to Wealth, 1758“Spending money to show people how much money you have is the fastest way to have less money.”
Morgan HouselThe Psychology of Money, 2020“Wealth is what you don’t see.”
Morgan HouselThe Psychology of Money“Only when the tide goes out do you discover who’s been swimming naked.”
Warren BuffettBerkshire Hathaway letter“Everybody has a plan until they get punched in the mouth.”
Mike Tyson“The first $100,000 is a bitch, but you gotta do it.”
Charlie Mungerattributed“Someone’s sitting in the shade today because someone planted a tree a long time ago.”
Warren Buffettattributed“There is treasure to be desired and oil in the dwelling of the wise; but a foolish man spendeth it up.”
Proverbs 21:20King James Version“Go to the ant, thou sluggard; consider her ways, and be wise: which provideth her meat in the summer, and gathereth her food in the harvest.”
Proverbs 6:6–8King James Version“It is while Fortune is kind that it should fortify itself against her violence.”
SenecaLetters to Lucilius, 18 (Gummere tr.)“Live like no one else now, so later you can live like no one else.”
Dave RamseyIX. The three
Three rules. That's the whole game.
Pay yourself first.
The wall gets fed before the landlord, the store, the club. You don't save what's left. You live on what's left.
Brick by brick.
$50 at a time, every time, without missing. Amount doesn't matter. The streak does. Then let time do its thing.
The wall is the flex.
Nobody sees it. You can't fake it. When the rain comes, you're the calmest man in the room, and that's the only flex that's real.
- Gucci don't stop the rain.
- That's not a deposit. That's a brick.
- They bought the drip. I bought the wall.
- Rainy day's coming. Wall's already up.
Brick one is today
Pay yourself first.
Open your bank app and move $50 to savings before you spend a dollar on anything else. That's brick one, and then you do it again next week.