Inspiration isn't something that can be taught, it is learned by experimentation.
While my portfolio is filled with the polished sheetmetal of classic and modern cars and dogs doing their thing, I also get inspired by much simpler elements of life. I don't get stuck or creatively blocked because I open my eyes to the possibilities. To me, even inanimate objects like an old-beaten down bench against a wall of vines inspires an image, and evokes my curiosity of how the light falls on the subject and how the wood's grain runs in contrast to the background.
A still-life of the bench can tell the bigger story of one's surroundings, like that of contemplation. Understanding the technical aspects of your immediate environment leads to making even better images.