This is the secret that nobody will tell you. In fact, very few people actually know about it. Most of them just pretend that they know. I've learned it through months of research.
Let's talk with an example. Let's consider that you’ve bought one product and expected that it’ll serve for you forever. But unfortunately, soon you found that the tools and tips are not working anymore. It means, a tool, trick, technique or software doesn't work for long. Because once a new tool is in market, people start using it for good, bad and ugly- all types of purposes. Soon, Super Smart search engines like google update their programs to separate the good sites and bad sites. And thus your techniques become useless and outdated.
As internet is basically information technology, only the sites containing good, useful and unique informations stay in the search engines. The others are screened out.
So, the easiest way to enjoy high and regular affiliate commissions are to be aware of new tools and techniques and to be flexible to adopt them in your sites.