Take time for your family. Management consultant, John H. Melchinger asks clients, "Are you in business to make your life better; or in life to make your business better?" It's easy to get wrapped up in your career, and forget what's most important (some people don't want to know).
Try this! If you're in business to make your life better, plan your business — and your life — accordingly. Work as much as you need to, but also spend time with your family doing things that enrich all of your lives.