buying things in twos.
Whenever I go shopping in the supermarket, about 90% of everything I put in my trolley, I get two of.

I think originally it stems from me thinking "When this has finished, I'll want another one at some point, so I'll get another one now, and then when it runs out, I'll have another one already", but now it's just habitual. I don't even think about why I'm doing it.
( PMGT -Bacon., Thu 15 Dec 2011, 21:44, 2 replies)

what you need mate is 2 trolleys - put one of each in each trolley, then when you get to the checkout abandon a trolley. problem solvered.
( enoughblueskyforsailorstrousers, Fri 16 Dec 2011, 9:50, closed)

What if
something is part of a '3 for 2' offer? Do you not put the third one in? Or do you buy six (three lots of two)?
(salvadorevincent, Fri 16 Dec 2011, 9:57, closed)