Credit cards aren’t the only way to earn cash back and how much your Facebook data is worth on the dark web

Happy Tuesday, MarketWatchers. Don’t miss these top stories:

Personal Finance

California’s emigrants aren’t all moving to cheaper housing markets

People are leaving California in droves — and this is where they are going.

Scientists from 5 universities say doing this one thing faster could add years to your life

Every little bit helps, particularly when it comes to staying healthy.

This man has 4 daughters, but believes only his youngest deserves an inheritance

Should he split his estate equally or give his youngest daughter preference?

United Airlines attempts to fix boarding process headaches

The company is testing new group numbers at select airports.

The new tax law makes hiring your kid a better idea than ever

Put your children to work over summer vacation and save taxes.

These grocery-shopping hacks could save you $525 a year

The secrets to saving money at the grocery store without having to clip coupons.

The sad truth about how much your Facebook data is worth on the dark web

A report released this week says the company made agreements with device makers to share friends’ data.

Turns out, Facebook users do have a red line when it comes to sharing their data

There’s a limit to how much people trust the biggest social network on the planet.

New apps help victims of sexual assault and harassment file anonymous reports

Women are using apps to privately share stories of sexual assault.

Credit cards aren’t the only way to earn cash back and points

How to get rewards even if you don’t have a credit card.

Elsewhere on MarketWatch

Social Security to tap into trust fund for first time in 36 years

Medicare’s finances were downgraded in a new report from the program’s trustees on Tuesday, while the projection for Social Security’s stayed the same as last year.

U.S. economy can’t keep on truckin’ without more drivers to ease flat-bed shortage

When the nine-year-old U.S. expansion finally grinds to a halt, a lack of truck drivers is sure to help foul up the gears of the economy. A shortage of truck drivers has been building for several years, but now the problem is especially acute.

Why adding Twitter to the S&P 500 could be a ‘sell’ signal for the stock

Stocks deleted from an index tend to outperform stocks that replace them, writes Mark Hulbert.