When buying, you will find many products and some offers. It is important if you want to save, and more in times of crisis, you spend to offers and discounts. For example, take advantage to buy in any establishment where there are 3 * 1, 2 * 1, second unit to half, etc. Surely you’ve seen many of these offerings in the Carrefour, the Eroski, supermarket of your people or any other supermarket. technology investor may help you with your research. You think giving swindle because for the same price you can take more things, but no, just the prices are cheaper because the supermarkets catch more stock and they get them much cheaper. Leverages to buy according to your purchasing power, which in use over time, take advantage to buy as much. For example, buy if you can paper towel for several months, oil for several months, and especially products which takes to expire for the maximum time that you can afford, your home and your pocket. Although in the short term you spend more, long term you’ve not repented, because .