Broner said:
With respect to Duracell batteries: yes they work perfectly fine, but not better than other batteries (http://www.batteryshowdown.com/results-lo.html). The reason why they are so expensive ...
I only ever buy Duracell AA batteries when they are two packs for the price of one pack. I have rarely seen such offers on 'own-brand' supermarket batteries.
We only use them for our three wireless mice, so a couple of BOGOF packs of four AAs last us at least a year.
I would agree that many supermarket 'own brand' items are either identical or superior (and far cheaper) than 'premium' brands though.
Waitrose 'Essential' soups are an example. Way more tasty and cheaper.
My wife needed a lot more convincing than I did until one day I took the previous fortnight's receipt and bought the same items (and quantities) for £41 less. I also managed to convert her to an own brand tomato ketchup and freshly baked bread from their bakery and own brand breakfast wheat biscuits (way better and almost half the price of Weetabix.)
This meant we could afford to buy better quality cuts of meat, better quality eggs and cheese etc. without significantly denting the savings made on cutting out the Branstons and Heinz's and Andrex's and McDougall's and Kelloggs etc.
I don't even buy packaged orange juice any more. It takes about 10 minutes to squeeze enough fresh oranges (from the vegetable shop nearby) to fill a 2 litre jug. (At about 2/3rds of the price of any so-called 'pure' orange juice.) Tastes far better too.
Farm shops used to be good value for excellent fresh meat and veg, but our favourite ones have now gone all 'poncey' (with prices to match) as a result of various 'foodie' programmes making them more popular.