When we tidy each place separately, we fail to see that we're repeating the same work in many locations and become locked into a vicious cycle of tidying. To avoid this, I recommend tidying by category. [My bold]
Thus says Ms. Kondo in her The Life-Changing Magic of Tidying Up, which Amazon describes as the "#1 Best Seller in Zen Philosophy."
Please tell this lady that no one in our house is caught in that cycle, especially me.