"Financial companies love profitable customers who run up their credit card balances, right? One might think," says Randy Padawer, vice president of credit services at LexingtonLaw. "But interestingly, that same industry penalizes consumer credit scores as a direct result. To ensure a good credit score, never max out your credit cards. For an even better score, keep balances as low as possible."
Next, estimate your monthly spending habits for other expenses such as gas, groceries and entertainment. Create a limit, based on your income, of what you can spend in each of the different categories of expenses. For example, if you tend to spend $400 a month on groceries, try to stick to $300 a month on groceries by making changes like buying generic brands, using coupons, and resisting impulse purchases.