For many couples, by the time each person gets home from work, makes dinner, spends time with the children, you are both exhausted and ready for bed. Set aside time each day, even if it's only for a few minutes, to connect with your partner.
Try planning a date night once a week. This can be a romantic dinner, at home, after the children go to bed or a night out on the town. But, once a week, plan to spend time together, alone.