I have an incurable affliction - I can't stop writing. Recently, in the last few months, I've enjoyed carrying a pad of paper around wherever I go. It's handy to jot down random ideas, character observations, scene ideas, etc. I may never come back to the paper, but the act of writing the thoughts down helps keep them in my mind.
As a natural extension of this, when I am in a restaurant, I often jot down thoughts about the setting, service, and food. However, instead of letting all this go to waste, I'm going to start consolidating my mental droppings and turning them into a review. Of course, considering my sense of humor, and the genres I enjoy writing (pulp, fantasy, and sci-fi), my reviews may diverge from the norm from time to time.