Many of us don't think too much about what we throw into our grocery carts—or how much it all costs. After all, we have to eat! But for most Americans, food makes up one of the largest expenses in the budget, right after paying for housing and transportation. If you can trim just $20 off your weekly grocery bill, it can save you $1,000 per year; saving $60 per week could put more than $3,000 extra in your pocket.
Believe it or not, those kinds of savings aren't unrealistic, and you don't have to starve to death to achieve them. All you have to do is look at where grocery stores make their money and where you may have some bad shopping habits.
What You Pay More For
It isn't hard to guess which items in the grocery store have the highest mark-ups; after all, you won't see a fancy display around cabbages or low-fat milk. In fact, the highest margin—and therefore lowest value—items will fall into one or more of the following categories.
For the rest of the story: http://lifehacker.com/5986948/why-you-pay-more-at-the-grocery-store-and-how-to-stop