List of possible times and exercises:
  
 Tae Bo tapes
 Walk Bear
 Take girls for a walk/bike ride
 Beach Body DVD
  
 When dh is on days:
 9am - while girls are at school
 1pm - after lunch with the girls
  
 When dh is on afternoons:
 6am(shudder) - before girls wake up
 3pm - when dh leaves for work