It's possible that in the apartment or house next door lives a blind person who would be delighted by your visit to read them the newspaper. It's possible that there's a family in need of something seemingly insignificant to you, something as simple as having their child looked after for half an hour. There are so many little things, so insignificant that countless people forget them.
Don't think you have to be simple-minded to take care of cooking. Don't think that sitting, standing, going back and forth, that everything you do isn't important in God's eyes.