Odd pricing

[mike11111]

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.

[mike11111]

A packet of three. That takes me back!

[jon1968]

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?