Surefire

Drink driving is a surefire way to get into trouble with the police.

One surefire way for money to provide happiness appears to be to spend it on other people.

It's the most surefire way to solve the problem.

The people like music. If I make music streaming service subscriptions tax-deductible, it's a surefire way to get re-elected.

There's one surefire way to live to a ripe old age: eat a meatball a day for a hundred years.

Dutifully socking away a chunk of your salary each month may seem like a surefire path to a comfortable retirement. But there are plenty of ways you could be sabotaging that savings.