I don't consciously set out to do NSDs but during the week they pretty much all are anyway. I do my shopping on a Sunday morning after having planned my weekly menu so i always shop to a list,. Then during the week I take my breakfast and lunch to work with me every day, I have a fruit bowl on my desk and a snack stash in my drawer. Teas, coffee and drinks are all made in-house so no popping out for a latte even though I am based in the city centre. I take the bus to work in the morning but have a pass, and walk home in the evening but there is no temptation to shop en-route. Most days I don't even take my purse to work with me so even if I was tempted, I wouldn't be able to anyway. I get the Metro on the bus so no buying a newspaper and any magazine I read, I get on subscription as you usually get a better price and they are delivered straight to the door.