I've a habit of placing a happy-face or a frowny-face on my calendar, depending on what kind of day I've had.  Often I slap a droopy circle in the box, discouraged by the things I failed to accomplish and the unpleasant encounters endured.  But then, invariably, a wise muse stops to ask me these three questions:  
Did your children let you hug them today?  Yes.  
Did you do a kind deed for someone?  Anyone?  Yes.  
Did God forsake you today?  No.  
Then, my dear, despite your challenges, it was a good day after all.  
Standing corrected,  I twist that frowny-face upside down and smile.