GW2 "Farming Black Lion Keys"

So lately I have been farming a lot in GW2 to make up for the time I have been away. Unfortunately I don't have any money to spend on the Gem Shop, however arenanet is pretty cool about giving alternate ways to get Gems and items from the gem shop. So this is how I farm keys, it takes about 30 minutes per key, and the reward from the black lion chest isn't always worth it. But if you'd rather farm your keys than convert gold or pay cash, here is how I do it.