I have found that site very difficult to navigate and have consequently missed many of the offers by not finding them in time.
I have for some time now been a "supermarket tart" - this being, not hanging around outside supermarkets in fishnet stockings, but going to Tesco in week 1 and only buying BOGOF items that we can use - if you don't use it, it's not a bargain and buy in bulk if it can be stored (if item will keep or if you have the space- which can be a problem on a boat), then going to Sainsbury in week 2 and doing the same, Morrisons in week 3 and Asda in week 4 and them back to Tesco again etc etc.
Staple items such as milk, bread and fresh veg are bought when needed from whichever store I am in or locally as and when.
"Tarting" means that we get a large amount of our supplies at half price.
Hope this is useful to someone.
Michele