1. This is what writing looks like 70% of the time. It's a lot of staring at stuff and making weird faces because you're thinking really, really hard. Also...sometimes you talk to yourself as you work through some stuff...for the characters, of course.
2. It puts the snacks in front of the writer. SNACKS...IN FRONT OF THE WRITER! A key to any successful writing bout is feeding our brain (and stomach). Writer's block and antsy-ness can be staved off by simply figuring out something to munch on (or drink).
3. There is no "inspiration." Writing is a skill like anything else. Writing fiction does take a certain amount of inspiration, but it's the kind that you can inspire within yourself. If you wait for the muse, you never write the book.
4. Inspiration comes from the weirdest sources. Think that music mix you put together is the key to getting your book going? Maybe. But sometimes it's the most random event or thing you can encounter. I once figured out a difficult plot point because my roomate was watching an episode of Supernatural about scary clowns.

...the books, and the plot point, had nothing to do with Supernatural and/or clowns.
5. It's not how much you write; it's that you write. I think all writers break this rule occasionally, but writing every day is probably one of the most important things you can do. How you measure what you write is up to you. Some days if I can write a paragraph, I'm thrilled. Other days I write huge chunks, chapters and chapters worth, of the story in one go. The point is that if you aren't consistent, less and less gets written (usually). Keep the word train going (even if it's slowly going).