When comparison shopping at a grocery store, always check the price tag of each item to see the unit price and compare the initial price to the promotional price. Also, use online price comparison sites such as mySupermarket, MyGroceryDeals.com and Living Rich With Coupons or the smartphone app StockUp.
When comparing prices between products and between grocery stores, it is important to look beyond the retail price and take into account other factors such as the product's size. In many cases, the product with the lowest price isn't the best deal because there may be another product in a larger size that offers a lower price per unit of weight. However, larger products don't automatically include a built-in bulk discount. Shoppers need to calculate the exact price per unit of weight in order to find out what product offers the most savings.
Sites such as mySupermarket and MyGroceryDeals.com allow shoppers to quickly check deals and promotions at different stores without having to visit them. This makes it easier to compare items between stores. Some sites also allows users to create shopping lists based on the lowest prices available. The smartphone app StockUp works on a similar premise, in that it looks at active promotions at local stores in order to let the customer compare prices quickly .