[QUOTE] [supermarket loyalty cards][QUOTE] Because they rob you blind if you don't have one? Dunno about where you are, but in the western USA nearly every item at Albertson's et al, is _way_ overpriced unless you use one of the cards. Strangely, they'll happily give you a "loyalty card" (AKA tracking device) at the register without requiring you to fill out the form, and you can bin it on your way out.[/QUOTE] I've never come across differential pricing like that in the UK. Sure you can earn extra points for purchasing certain products but premium prices for no loyalty cards - eek! A bloody dreadful idea. I suppose this will be coming to a Wal^h^h^Asda near us sometime soon.[/QUOTE] I don't use Somerfield very often. There's one close to my aunt's house and I pop in there once in a while. The differential pricing annoyed me too. The thing was dropped some time last year. I haven't seen any form of loyalty card scheme in a US Walmart or Asda, BTW.