Changing your mindset and sticking to it...!

Just wondered if anyone had come up with the magical way to keep themselves debt free? As you can see from my sig we are in a lot of debt and trying, patiently to pay it off. However part of me is scared to because this is something we have been through before - twice. Just after we got married we found ourselves in a mountainful of debt, we had taken loans out to pay for our wedding, to furnish the house, to buy a car. It was the late 1980's and we were 7500 in debt and OH was earning only 550 per month, I was unemployed. The best thing I did at that time was get a job - working in a bank because it made us face up to our debt problems, I had to keep ourselves in financial order. 3 years later our debts were paid off helped by the fact I was working, OH was promoted at work and by us snowballing our debts. It was an amazing feeling and the next 5 years were brilliant we had holidays, saved, had a baby then we both decided to retrain and that is where the problems began we continued the lifestyle without the money to pay for it. We had a lot of equity so took out a secured loan to consolidate - of course that did not work and now we are over 30k in debt. This time I am determined we will never live like that again, spending money we don't have but I've said it before and that is the bit that worries me !