What is the most efficient way to fix a broken tail light on an Audi 80?

I recently noticed that my Audi 80's tail light is cracked and needs to be fixed as soon as possible. I want to know what is the best way to do this and what tools or materials will I need?

The most efficient way to fix a broken tail light on an Audi 80 is to purchase a replacement light from a reliable auto parts store and replace it yourself. This will save time and money compared to taking it to a mechanic.