Expired shampoo or the one that didn’t suit your hair is sitting in the bathroom cabinet, collecting dust, as it’s not being used, and it’s a shame to throw it away. Give it a second life, as there are many household uses for it, writes Sante. Expired shampoo or the one that didn’t suit your hair is sitting in the bathroom cabinet, collecting dust, as it’s not being used, and it’s a shame to throw it away. Give it a second life, as there are many household uses for it, writes Sante. Shaving Cream Mix shampoo with water and whisk it until it forms a lather. This mixture can serve as an excellen…