I turned the weaponized incompetence thing against my husband.
It used to be that he would do a terrible job knowing that I will either finish or completely redo it. One day I just said to myself no more. If he swishes water in the salad bowl and claims he washed it, he will be served salad in a bowl with a day old stuff stuck to it. If he hits his alarm clock and falls back asleep in the morning, I am leaving for work and letting him wake up hours later with a screaming kid in the house going bonkers because they are late for school. A few months of that, and he shaped up real fast.