There are a lot of topic on how to make money i want to make topic in which we would post how we mess up in past and what lessen we learned from it so every one can learn from our mistakes. My latest was not changing 2015 in meta title to 2016 results 25% drop in traffic and 50% drop in sells. Lessen learned always change year in articles as fast as possible and don't forget about changing meta title and description. Other I experimented with Geo targeting ads. I wanted to add adsens ad for every one that is not from USA since amazon sells from other stores then US was very low but i mess up on cashing and people start getting adsens ads at random i fixed it but i fuck up caching and cache was not refreshing effect i get listed as best product, product that was not available because cash didn't refresh after me updating article while i see new version because i was logged to wordpress. Effect 66% drop in commission. Lessen learned... always check in private mode if cache was refreshed.