One of the perennial risks with Atkins-style diets is that there comes a point where you really, really want two slices of something to hold your bacon and cheese together in an ergonomic and non-messy way. The urge to grab that wonderful but seditious invention - bread - is very strong. Lettuce works but just doesn't feel right. Especially if you just lurve the smell of toast:-/
I am reminded of Woody Allen's hilarious short story about the Earl of Sandwich...
All joking aside, s/he who invents something that is very low carb (that rules out most of the so-called low-carb breads on the market), and can function like bread in a sandwich, has a bright financial future.