Alexa Von Tobel, CEO of LearnVest.com, told show host Katie Couric all the things banks really don't want you to know - and also mentioned that 61% of the country is living paycheck to paycheck.
One of her best money-saving tips? Pay your mortgage bi-weekly!
Von Tobel also said that some bank tellers are actually salespeople in disguise -- so beware if they start talking about a new credit card.
Oh, and watch out for those 0% interest balance offers. The average American household has $9,000 in credit card debt alone, and if the debt isn't paid down quickly -- sometimes in as little as six months -- that interest will go up fast.
Von Tobel told 'Good Morning America' that another great tip is just writing down a financial plan.
Last but not least, use your debit card so you don't spend money you don't have. Von Tobel says if you're shopping online, credit cards are best for security.