Well, doing chores around the house is productive and helpful. Reading books is very productive and stimulates the mind. You could do history in the area you live in. Like-take some hikes around the area and do research. You could pick up a new craft, or learn to cook. Make some meals. Also, it's good to help serve others. You could go serve food, or look for elderly who may need help around the house or some company. I sometimes go help an old lady near me clean her house as a volunteer. Sorry this isn't much of a 'routine' but just some ideas to think about.