Living on my own I tend to buy things in small quantities, not least because I don't want them to go off before I've used them. Consequently I buy either a one pint or a two pint bottle of milk, two pints normally seeing me comfortably through the week. So I pay either 50p per pint or 90p for two pints. No problem.
A friend told me that at Iceland I could get 4 pints for £1. Damn good bargain, except that I would not normally use 4 pints in a week. Then I got to thinking; even if I didn't use all of it the most I could lose is 10p, so I've started buying the 4 pint bottles. The strange thing is that Iceland sell 6 pint bottles at £2.38. So some people must buy 6 pints for more than they would pay for 8 pints if they bought two 4 pint bottles. I must hover around the milk counter and watch next time I'm in.
I’m sure they just rely on people bumbling around on autopilot buying what they normally buy!? (I’m sometimes guilty)
I was shopping in ASDA on Monday and they had:
Clover 500g £2, 1Kg £2 :-S
Double cream 600ml £1.98, 2 x 300ml £1.60
Richmond sausages 8 for £2.09, 12 for £2
PG tips 160 £3, 240 for £5.96... so 80 bags for 4p if you buy 2x160?