Do you use them?
I usually do our big shop at Asda but go to the local Sainsbury's at least once a week. I must have at least 20 Nectar cards that I always pick up at the checkout with the intention of registering them and usuing them regularly but it never happens. We sometimes use Tesco too, H often gets a meal deal from there if I have been a bad wife and not made him any lunch.
Do the points ever add up to anything worth bothering with? Am I missing out?