A lot of people have WD-40 in their homes. That’s perfectly normal! It is a product with many uses and immense potential. Indeed, this cleaning product, often used as a lubricant, can remove stains and wash many objects we use in our daily lives. You can also use it to protect things from corrosion. If you have WD-40 at home, here are 20 practical things you should absolutely know about this product!