A simple family devotion that you can start anytime is acknowledging the Blessed Sacrament when you pass a Catholic Church.
You can do something as simple as having everyone make the sign of the cross.
Or pray a simple prayer together:
“O Sacrament Most Holy, O Sacrament Divine, All praise and all thanksgiving be every moment Thine.”
“O Most Holy Trinity, I adore Thee, My God, My God, I love Thee in the Most Blessed Sacrament.”
Or make your own prayer, professing your love for the Real Presence in the Blessed Sacrament.