Ha, it was chips for me (potato or corn chips). I remember having a huge fight with my then boyfriend because I said casually "I'm just going to walk up to the 24/7 garage and get a bag of Twisties" and he said very reasonably "at 11.30pm, isn't that a bit ridiculous?" I still remember the rising panic I had at the thought of not getting those chips...

Thank you to everyone who has commented and who can relate, it means a lot to be understood. And I'm so happy I broke through my mistrust of "fad" diets and picked up a low carb book at the library!