Call me a supermarket freak.   I enter the grocery store with the same level of enthusiasm as a kid stepping into a candy shop for the first time.  While some men visit the gym twice a week, I drop by the supermarket thrice a week.  I will gladly skip I.T. shows and car exhibitions, but not a supermarket sale with store wide discounts.   Being the (kitchen) cabinet minister, I am in charge of balancing grocery expenditures within the household budget.  Any surplus funds mean extra ammunition for my master plan.   Given the strict mandate, I have to make sure every dollar is well accounted for.  One way to do this is to track the price of household items very carefully.   Yes, I take the price tracking seriously.  I know Nestlé 3-in-1 Original premix coffee usually sells for $0.16428571 per sachet ......