Today’s top story: NerdWallet’s best credit card tips for September. Also in the news: The pros and cons of adjustable rate mortgages, how to start working odd jobs at TaskRabbit, and watching out for penalty APRs if you miss a credit card payment.

NerdWallet’s Best Credit Card Tips for September 2017
Finding the best offers.

Adjustable-Rate Mortgages: The Pros and Cons
Know what you’re getting into.

How to Start Working Odd Jobs at TaskRabbit
Starting a side hustle.

Watch Out for Penalty APRs If You Miss a Credit Card Payment
Your interest rate can increase dramatically.