Being from NJ (it's been a while though), I always liked Shop Rite. Good selection, prices and produce. When I visit the in-laws, I read their ads - good sales. They have an annual or semi-annual Can Can sale (been doing it for decades). I believe Manwich was $.77 during that sale. They should be cheaper than SF but SF sure does have some good sales!
I wish I could give you more but it's been a while!
Here's their ad in Watchung, NJ: ShopRite of Watchung Circulars |