A Real Timesaver

What is up with leaving the back door open while the heat is on in order to "run" to the garage "because you are coming right back"?  It takes almost zero time or energy to freaking close and re-open the door.  Right?  And, how about leaving the freezer open while you tear into a bag of nuggets "since you will be returning the remainder to the freezer"?  Ughxch!  So annoying.    This thinking is baffling and persistent.    I am not 11 anymore.  Why must I catch myself, at times, living this way?Very very disappointing behavior.  These are the ways of a fool.  I need to be clear here, in that I am referring only to my own recurring bad choices in the name of efficiency.