UNIT PRICING Supermarket unit prices are often unreliable, or at the very least uusable. For example, a two-liter bottle of soda will show a unit price of however many cents per liter, while a six pack will show a unit price in fluid ounces, making comparisons impossible. Our unit pricing improves upon this by allowing you to select a single unit of measure for all dry items and a single unit for all fluid items. Make this selection by visiting your preferences page. RATING SYSTEM Our rating system compares the current sale price of a product against its sale and regular prices for all supermarket chains in your area. It considers the last three to twelve months of price history for the product. An “A” deal means that this price is at or near the lowest that we have recorded for this product at any store in your area. “B” means this is about the best price observed in the last four to six weeks, “C” and “D” means the item’s sale price is a savings over its non-sale price, but not such a great deal, and “F” means the sale price is not a meaningful discount compared to the best non-sale price for this product. Occasionally, a product is offered at such a spectacular discount that we will assign it a rating of “A+”. “BUY ONE, GET ONE FREE” VS. “TWO FOR...” There is an often misunderstood difference between these two terms. “Buy One, Get One Free” means just that: you must put two of them in your cart to get the advertised savings. You pay for the first one, the second is free. Conversely, “Two for...” pricing is just a way to encourage purchasing more than one of the item. Unless specifically posted to the contrary, you can safely assume that any such multiple price savings will be applied if you buy a different quantity. Supermarket Safari reminds you of this when you build your shopping list. If you enter a quantity for a “Buy one...” sale item that does not give you the best possible deal, the system will warn you of the mistake.