 
I bought two tins of black beans, to make a chocolate cake.  A bag of dried black beans, so I can have some in the freezer ready for future chocolate cakes.  Two bags of sugar to make some bramble jam/jelly tomorrow.  A couple of bags of bread flour.  And a bottle of milk - which involved me walking along the meat display.
And I had a sudden mischief-making thought ... "**** me, that's cheap.  Wonder how it compares?"  
 
Totally scientific?  My ****.
[edited - aye, and the black beans were cheaper per kilo than the cat- and dog-food tins too.  But I trust them 

.]