1. Always say ‘I love you’ to each other.
2. Never go to sleep with an argument unsettled.
3. Say at least one compliment to your partner everyday.
4. Never yell at each other unless the house is on fire.
5. If one of you has to win an argument, let it be the maid.
6. Never bring up past mistakes when in an argument, it will only worsen the situation.

I’ve attended a wedding today and the bride’s father included this on his speech. It really actually made sense even if he made a joke about some of it.