Keep the fridge stocked with vegetable crudités, such as sticks of carrots, green peppers or tomatoes, perhaps with some salsa or hummus, for moments when you just have to snack. Put them at eye level in the fridge. Anything unhealthily calorific needs to be covered up and stored in the bottom of the fridge where you are less likely to see it. My weakness is toast. I did suggest to my wife we throw the toaster out (on the grounds that I would rarely bother to use the grill) but she refused. Instead, I keep unsalted nuts by the toaster, so when I am tempted to snack on toast and marmalad