There Is Only ONE Way To Shop - And This Ain't It, Tom!

http://www.dailymail.co.uk/debate/article-2322213/Read-grumpy-column-Tom-Utley--weeks-free-Or-I-falling-devilishly-ingenious
To shop successfully to maximise savings you must:
A) Carry prices in you head - even if it takes months to get proficient at this.
B) Rotate the supermarkets you visit.
C) Make it a principle to 'stock up' whenever you stumble across a really genuine offer.
D) Get into the habit of remembering that 'ASDA is always cheaper on Item X' and buy accordingly.
E) Use Aldi, Lidls, Home Bargains, Pound Shops and Iceland if passing but stick to the principle stated as you can get ripped off in these places just as rapidly as anywhere else if you relax.
F) If you insist on 'one-shop-shopping' - fine BUT it's gonna cost you and far more than you might imagine.
   Few are the people who cannot save £1k annually of pre-tax income for expending a little thought and care.
PS. After 30 years of doing this and investing the amounts saved - I had enough to buy a house in Spain with the savings!