NEW YORK ( TheStreet) -- U.S. adults are doing a better job handling household debt, but as the old saying goes, there's always room for improvement. According to the New York Federal Reserve, U.S. household debt stands at $11.5 trillion, down from $12.7 trillion in 2008 at the height of the Great Recession. Sure auto loan debt has risen $108 billion in the past nine quarters, but household debt slid by $91 billion just since the first quarter of 2013, the New York Fed reports. "Although overall debt declined in the second quarter, households did increase non-housing debt, led by rising auto loan balances," said Andrew Haughwout, vice president and research economist at the New York Fed. "Furthermore, households improved their overall delinquency rates for the seventh straight quarter, an encouraging sign going forward." waste money: Buying brand-name products. Americans waste a lot of money buying brand-name products with "fancy packaging" when they could get more value by buying generic brands. Studies show that brand-name products have an impact on consumers' self-worth, but in actuality it's just paying more for the basically the same product. Late payments. Kiplinger's says way too many consumers miss monthly debt payments on things such as credit cards and auto loans. That's a big mistake, as late fees eat away at finances and credit score. Fix that bad habit by signing up for automatic payments or asking a creditor to send you a text or email reminding you when your payment is due. RetailMeNot.com or CouponCabin.com. Carrying a monthly debt balance. If you're in the habit of rolling over debt every month, you're losing a surprising amount of money. For example, if you carry a $1,000 credit card balance every month at 18% interest, by the end of the year you've paid an extra $180 on your credit card bill.