My dietary weakness is, you guessed it, popcorn. I cannot sit through a movie without a bag of popcorn. Whether at the theater or at home, popcorn is my kryptonite. Of course, I do prefer to pop my own, and never from a pre-packaged bag (I have popped my own in a brown paper bag, however). I have burned through two air poppers in the past couple of years, and I am currently using a Lekue microwave popcorn popper. So far, it has worked out well, with no signs of burning up.
For the past 21 months, I have been avoiding sugar and processed foods. Popcorn is a whole grain, and I use that fact to justify eating it. While I do generally avoid dairy, I like real butter on my popcorn. I try to limit myself to having it only a couple of times per week, but I accept the fact that I am only human. I have managed to keep my weight consistent for the past 8 months, in spite of my regular popcorn consumption.