Empty headed

I make lists.  Things I need to do today, this week, this season, this year.  And lately on my daily and/or weekly lists is to write something.  Anything.  And it feels my head is just empty of anything worthwhile to say.  I'm not sure why. 

Work has been draining.  I was in a training class for new employees half of this week.  It was good.  I learned a lot, things that will help me with the project I'm working on there.  By the time I get home I just want to relax and "veg" as we like to say. 

I haven't been reading as much as I should, or at least not the right things.  I tend to peruse the net or play computer games when I get home rather than read something more substansive.  Got to work on that.   

I tend to come up with and formulate my posts when I take Jack for a walk in the mornings.  The weather here lately has been anything but conducive to long, leisurely walks.  Ten degrees and snow just doesn't cut it.  The other day when when we walked it was -2 and calm with gloriously blue skies, and since I was dressed right, it didn't feel all that bad.  But the loud crunching of the snow seemed drown out any thoughts that may have gone floating by.

What's the remedy for empty-headedness???