Paint

5,000 years ago, the first synthetic pigment was produced by the Egyptians. It was made from ground-up glass. Today, though you don’t have chunks of glass floating in your can of semi-gloss Rustic Red, there are some things you should be aware of before you toss it to the curb. In fact, it is against the law in most places to put free-flowing liquids (such as paint) in the trash.