Weekly list of curated personal finance articles from around the web.

The scarcity effect. Why we buy more than we need (Becoming Minimalist). A common marketing technique to watch out for.

What’s in the center of your portfolio? (A Teachable Moment). Are you headed in the right direction?

Roth IRAs are all the rage with the young crowd (Wall Street Journal). Great to see so many young people getting on the Roth bandwagon.

Don’t be car poor (The White Coat Investor). Written for an especially wealthy crowd, but with many applications for all.

Americans are leaving millions in free money on the table (CNBC). I’m not trying to talk anyone into using a credit card, but if you’re going to use one, why not get the most out of it?

Is TSA PreCheck worth the money? Travelers are divided (Money). It may be worth it if it dials down the stress of traveling — all the better if it’s a perk offered by your credit card.

Top credit report myths (FaithFi). And perhaps the greatest myth of all — you have to carry a balance to have a great score.

They hated health insurance. So they started paying for each other’s care. (Time). Interesting development in the health insurance space.

To weigh in on any of the above, just leave a comment below.