Elder L. Tom Perry counseled:  “Perhaps it would also be appropriate to have a date with our wives each week, to remind us of the great blessing they are in our lives.” (L. Tom Perry, “Family Traditions,” Ensign, May 1990, 19.)  I further encourage time alone each quarter and each year with your spouse (without the kids).  After all, when the kids are grown, there will still be the two of you.