thanks Buppies,
 I think "light" is the operative word around here for a while. 
It's hard for me to do aeration, full lawn sprinklers. 
 Even dethatching is a challenge, though
we hardly ever leave the sprinkler system on for extended periods.  I think it's better to water heavily once a week
vs. watering lightly every night.  We've gotten some interesting lawn mold from doing the latter.
Just have to figure out what works best.
 Our property is overplanted, a gardener's wet dream, my wife's hobby, and I finally put in the
sprinkler system out of desperation.  We were going to our boat in the Chesapeake each weekend and before we could leave I had to spend an hour at least watering everything.  Nuts.  I figure the extra water costs us about two hundred dollars a year, we're on public water.  If that keeps my wife happy and me not with a hose in my hand, marvelous.  And since we also have a five thousand square foot remote garden to water, well I really can appreciate the sprinkler system now, and a nice rain every four days please.
When I finally wind up on my retirement farmette, and escape suburbia, (I do all my farming activity on a friends farm nearby),
I've been eyeing pulverizers and overseeders and all kinds of neat powered machinery.
Right now all I've got is one mp.  
I have to mow at least twice a week for months in the Spring, and if we keep watering and fertilizing, it hardly slows down until August.
Frankly I'd much prefer to mow once a week...but that isn't going to happen as long as we have neighbors who mow twice a week.
To me one of the real joys of privacy is no longer keeping up with the Joneses' lawns.