If you happen to visit grocery stores nowadays, you will able to see the long lines in the paying counter and the non-stop flowing of various goods on the barcode scanners. It’s hard to realize that the world experiences economic problems because you can’t still stop people from celebrating the festive holiday season.

Did you know that the biggest grocery store provider in the world is Walmart? Since it has 3,400 stores in the USA and 1,290 outside the US, this store includes department and grocery stores.