Another Ramsey idea with merit is to create an emergency fund of at least $1000. It sound counter-intuitive, because you could use that money to pay down debt, but Ramsey's theory is that people get stuck in the cycle because they don't have anywhere to turn when the car breaks besides the plastic. If you have some cash on hand for those occasions, you can more easily get to the point where you do not have any credit card debt or even use.
My hubby and I paid off about $6K in credit card debt after our college days. We didn't formally budget (we do way more now) but we decided that my hubby's paychecks would suffice to pay all our bills and spending money. The money I made temping was entirely allocated to eliminate that debt. It worked for us. That's not always possible, especially when you're not right out of college, but I'd consider looking for extra streams of income to throw at the debt if you can't get your expenses down to one salary. You can sell stuff on craigslist etc.
As far as staying out of debt, I pay off the credit card every week. Just never let it accumulate.