Walmart saves $200 million by changing its light bulbs and $20 million with a new floor waxImagine saving millions of dollars just by changing light bulbs and floor wax. It's exactly what Walmart is doing.[Collection]

Imagine saving millions of dollars just by changing light bulbs and floor wax. It's exactly what Walmart is doing.https://www.cnbc.com/2018/10/16/walmart-saves-200-million-by-changing-its-light-bulbs.html