Jordan - Hebrews 4

I'm not sure I really observe a sabbath day.  There are days of the week I sometimes do less than others, but there are no specific days.  Sundays, forget it.  Worship is great, but inevitably I will have a meeting after the service or errands to run during the day.  My job pulls me in at various times during the evening and sometimes on the weekends.  What does a sabbath look like in 21st century?  The more our kids and ourselves are overcommitted the less time we have for time with God, our family and rest.  "Let us therefore make every effort to enter that rest, so that no one may fall through such disobedience as theirs." (v 11).