I always struggle with finding subjects for blog posts: if it is something I already know, it looks too simple to write about; if it is something I know a litt

I always struggle with finding subjects for blog posts: if it is something I already know, it looks too simple to write about; if it is something I know a little or nothing about, I am afraid my learning notes will be not good enough. In both cases I don't want to show myself as some noob :)