I completely agree. At the end of last year I got "fed up" (heh, pun) of tracking and measuring and decided to just try to practice portion control without all the other stuff. Well, I slowly gained back a few pounds, because I wasn't accountable to myself, and just like before I was adding hundreds of calories throughout the day that I felt at the time were "no big deal". Of course, those add up.
I started tracking again and of course I started losing again - it works!