Buying the right BOGOF items saves money. For instance, after spending a lot of time trying different options, I now know exactly what face soap I want and I also know the price it sales for. From time to time, it'll be sold as a BOGOF, so providing the price makes sense (i.e. it is the normal price or less than 200% of the normal price) then it is a good buy (it has long shelf life, and will always be used).<p>I use up about 1.5 loaves of bread per week, so some weeks I buy one loaf, some weeks I buy 2. If it is a week where I only need one, but it is BOGOF I just buy 2 and put on in the freezer (and then take it out the following week). It is a similar story for cheese (although that doesn't need to be frozen, staying in the fridge, sealed, lasts for long enough).<p>One of the bigger savings we have got from a food perspective is to move towards making a 'menu' of food we are going to eat that week. Then buying the ingredients needed for each dish. This means little or no wastage (good on so many levels), being able to buy at a good price (rather than not getting something required then picking it up at somewhere convenient buy more expensive halfway through the week) and knowing the quantities up front makes it easier to either buy in bulk, or knowing when a deal that involves extra quantity will be suitable.<p>The above approach has also meant eating much healthier food, not finding ourselves in a position where we order take away because we don't have anything in. Ensuring we have not only meals planned, but healthy snacks (fruit etc) factored in too. It isn't a binary choice of by doing this we get everything 100% perfect, but it has been a hugely noticeable improvement.<p>I have read several times that some of these approaches and typically favoured by those who have more disposable income, which isn't ideal, as we really want those with less income to be getting all the good savings to try to ease/stop the wealth gap.