I bet she leave within a week and never come back if we follow these 5 simple rules
1. No showering or changing of T-shirts.
2. You must open a new beer every hour, on the hour.
3. All empty cans stay in plan site (never in the bin) so you can marvel over how much you have drunk and maybe even build a beer can statue of yourself.
4. You may not leave a room to fart, unless your ex-wife is in another room, then you may fart the same room as her.
5. The TV must stay at max volume 24/7, even if you are asleep.