One of the best pieces of advice you can give, or receive, with respect to managing the inevitable problems which arise out of co habitation is "choose your battles".
Basically conflict is unavoidable because people have a propensity to annoy other people. However, if you want to fight about, or pick on everything that someone you share a house or home with does, then you are essentially precipitating nuclear war. One of the cute acronyms which arose from the arms race between the USSR (now defunct)and the USA (now sliding down the toilet on its way to defunct) was M.A.D. Mutually Assured Destruction, and that's basically what you get if you don't know how to choose your battles at home.
In the spirit of acceptance and tolerance, and of forgiveness and grace, I would like to present the following household anti rules.
1. Don't park the car in the empty garage. It must be left on the driveway so the birds can have their evil way with it.
2. Don't hang the hand towel on the rack after you use it. It looks much better, and dries much better if it is left screwed up on the bathroom floor.
3. Rinse the dishes in dirty, oily water and leave them there overnight as this will make them easier to clean in the morning.
Do you have any of your own household anti rules to suggest. I'd love to hear them.