Pray the Angelus Prayer (6 a.m., 12:00 noon, 6 p.m.) – Add one time a day, at first, or pray it at meal times to get started: https://theangelusprayer.com/
Pick up family reading in the evenings (even if only once a week); grab a cup of hot cocoa or tea while Dad reads
Start each school work paper, letter, or card with the monograms J.M.J or I.H.S
Commit to starting every task throughout the day with a short prayer
Research some of the old Catholic Traditions from sites like these, start with one new tradition per month (get your children involved in picking these): https://fisheaters.com/
Reclaim your Family Sunday Mass, ensuring that you all attend together