It's sometimes hard, when things don't go the way you think they should, to be thankful anyway.  I "blogged" about this a few years ago.  "Playing the glad game"... it's from Pollyanna.  So, today, I didn't get as much in my paycheck as I'd hoped.  The battery died on Michael's car.  Jim hasn't been getting as many hours of work as he would like and needs. 
The glad game... I am thankful for my job at the High School.  I am thankful that Michael has the use of a car.  I am thankful that Jim does have work when so many others do not.  We have so much for which to be thankful.  There is so much that's good.  It's a matter of perspective.  The glass is half full...