How to keep different passwords for different websites?

We are always warned to keep different passwords for different websites. 

But most of us recycle the same few passwords. 

I have figured out a way by which it IS possible to have different passwords for each website. 

About most new websites, we observe one or more things. 

Now, I make the most distinguished feature of that website as my password. Only I know that this website reminds me of Great UX, or this website is overwhelmingly blue (neither of these is an actual password, thanjuberimuch) 

Simble and easy to remember (yes i do add basic encoding to the original phrase.)