Definitely plan everything, write absolutely everything down, even keep a small notebook with you with all the syns of things you usually snack on/grab in a hurry if you are out - no-one wants to carry round that huge directory with them! Make a menu up for the week and then do a shopping list from that. Look hard at how you can change your 'day' choices around by really knowing what is available in the healthy extras, especially if you tend to stick more to a certain colour day - with me, it is green, but my husband loves a sunday roast, so I need to do my homework a bit more regarding what to eat on a red day. If you are a snacker like me, remove anything dangerous from the house and really revise on low syn snacks that fill you up, and, again, things that you can grab while away from your home when hunger strikes. Make lists as long as your arm and don't worry that you will look like an obsessed, mad person - SW only works (as so many others have said) if you plan, plan and plan some more.