Early in The Millionaire Next Door, Danko and Stanley single out the Scottish. When my wife, Emily, read it, she said, “That explains everything about you!”

When I read it, I thought it explained everything about my two grandfathers–one was rich, one was poor, both were Scottish, and both spent their money pretty much the same way.

I’ve been reading a lot of these kinds of books because I’m not going to let what happened to us back in May ever happen again.But I blame Emily. She’s the one who started bringing me these kinds of books.

So what am I doing? I can’t list everything, but I can definitely give enough examples to highlight this Scot’s mindset.

Pick up that quarter. You know that adage that if a lawyer drops a quarter, it costs him more money to bend down and pick it up than to leave it be? Forget that. A lawyer standing in a parking lot isn’t billing time. I always pick up that quarter. I’m not a vulture–if I see someone drop a coin or three, I pick them up and hand them to the person. But if it’s on the ground and there’s no sign of the rightful owner, it goes in my pocket, whether it’s 75 cents or a penny.

Be scrappy. When I was out of work, I walked around picking up aluminum cans. At 45 cents a pound with a 10-pound minimum (a pound is roughly 35 cans), it was a slow way to make money. But if you’re out walking for exercise anyway, pick ’em up. I pick up cans when I spot them in parking lots, and I save the cans the local hoodlums throw in my yard. The last time we took cans in, we got more than $8. That pays for dinner for a night or two, if you cook. I only gather cans when someone’s not paying me to do something else, but during those times, why not?

Pay down your debt. Once Em and I got on our feet financially and it was clear we wouldn’t have to live off our savings anymore, we paid off our cars. We’d been making extra payments anyway. By paying off her 5-year loan in 3 years and mine in 2, we probably saved $3,000 in interest charges. That 3 grand is going to come in handy.

And that’s Biblical: Romans 13:8 says, “Owe no man anything, except love.” Does that mean my home mortgage and my car loans are sin? Yep. At least we’ve got two sins out of our lives.

If you can’t pay it all off, make extra payments. Even tiny extra payments help. Do a Google search for a financial calculator. Plug in your home mortgage. Many will figure the effects of extra payments for you. On my mortgage, just $10 a month pays off my house a full month sooner. A lousy ten bucks a month eliminates a single $1,000 mortgage payment. I can come up with 10 bucks. About 18 months ago I quit buying a doughnut and coffee at work, taking a thermos and a couple of packets of oatmeal every morning so I’d quit spending $1 a day on those things. The total savings per month was almost 20 bucks. Packing my lunch saved another couple of bucks a day. You get the idea.

Initially I was doing it for hobby money, until I realized how much more I would save by eliminating debt first. Once that $1,000 mortgage payment and $300 car payment are no longer over my head, I can buy a lot more $10 train cars. Even if the price doubles by then, which it probably won’t.

Keep an eye out for business opportunities. My brother in law has the right idea. He and his wife bought the laundromat in the town they live in. They have to fix something once a week, but compared to their regular jobs, it’s easy money. Within a few years it will have paid for itself and the money will just be there.

He’s looking to start another business too. Ethanol costs about $1.84 a gallon and the price is steady. That’s 70 cents less than a gallon of gasoline sells for in their town. So a lot of farmers use ethanol. Many would anyway, because they’d rather support corn farmers than middle eastern oil tycoons. So he’s looking to buy an ethanol station.

Emily and I moonlight selling stuff online. She loves shopping at thrift stores and yard sales. I spotted a copy of How to Make a Fortune With Other People’s Junk and bought it (with a coupon, of course). We’re not following it exactly, but it put us on the right track. We’re small time but we’re profitable, and now she’s getting paid to do one of her favorite things.

The goal isn’t the high life. This might be the most important thing. The reason most wealthy people stay wealthy is because their goal isn’t a swanky $500,000 home in a ritzy suburb with two new foreign luxury cars in the driveway all the time.

Don’t get me wrong: I may not drive a Honda Civic all my life. But I could see myself driving a Toyota Camry or a Honda Accord whether my net worth was $160,000 or $16 million. A BMW or Mercedes (or a Lincoln or Cadillac, for that matter) does nothing to improve quality of life.

The goal is something completely different: not to be anyone’s slave.

A year ago, whenever my phone rang after hours, I had to answer it. If I failed to answer the phone more than maybe once a year, I was afraid I’d be fired. So I picked up the phone and did whatever the person on the other end asked, whether it was reasonable or not, whether it made sense or not. Sometimes that meant I had to cancel plans. But it meant extra money, and I thought it proved how indispensible I was.

And it was all over one Thursday afternoon. There were cutbacks at work, and my position was eliminated. So I got in a car that belonged to Honda and drove to a house owned by the bank, where I sat down (at least the couch was owned by me) to figure out how much money was in the bank and how many months that money would last while I looked for another job.

Freedom is being able to say yes when the phone rings because it’s the right thing to do, not because it’s what you have to do in order to support your lifestyle. Freedom is when it doesn’t matter if your job evaporates because you boss’ boss’ boss screwed up and lost a horrific amount of money because the main reason you’re working for him is because it’s more interesting than sitting around at home watching daytime TV.

Most people don’t have a job. Their job has them. And the main reason is because their lifestyle has them.

In a way I’m glad I learned this at age 30. I’m also very glad that Emily understands it, and that when I can’t explain something peculiar about the way I spend or (more often) don’t spend, she trusts me. This doesn’t work very well when only one person is on board.

And as long as both of us can hold down a job for about five years–a reasonable expectation, since both of us have done it before–we’ll get there.