That is an amazing accomplishment! My husband and I discussed financial practices from the very start (we talked about everything!), so I didn't have to try to change him. But living in debt is something I've done (graduate school) and don't ever want to do again. We do have a mortgage, but that's an acceptable debt. At any time, we could sell our house (called 'House', and I could never sell him! I loves House!) and be unencumbered again. In fact, we might even have a bit of equity in our pockets. At least the down payment back. I hope. 
And he had been living like that for years!
I showed him that all of the time spent at work and he was just working to give money to the bank and it was never going to be his money until he paid the overdraft off. And then what would he do if the bank wanted their money back or he had an emergency?
That really drove things home for him. He was nearly 45 years old and had never really been responsible for his own money. (His ex wife paid the bills and she wasn't good with money either.)
Have you ever seen Dumb and Dumber? When Lloyd takes their last $25 and comes back with a box of beer and whirligigs? That was my husband. He had to spend every last penny. Now I just have to say "whirligigs" and he seriously reconsiders any purchase. (Do you really need to buy a new toothbrush at the corner store?)
It's been a learning experience for both of us but I'm really proud of how much he's grown over the last 2 years.
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