Then there are the Lidlputians.....
A vastly different breed of supermarket shopper, compared to M&Sessians, or Tescolites...
Lidlputians have learnt from experience,to always grab more of an item than they currently need, because it may not be in stock for the next six visits.
[I do that with their Guatemalan ground coffee....my favourite....on account of the fact that Lidlputians have discovered that their namesake store actually doesn't put out single item trays of stock, but seek to exasperate the average Lidlputian by only putting out multi-tems stock trays.
Lidlputians obviously have large stock cupboards at home...]