Wow Phil, that's an awfully long process to blog. You could have written a book maybe?
For me, I'm very much like Cassie, where my ideas can pop out at the most inconvenient places haha..especiallly when I'm in bed.
When I'm outside, I'll observe as many things around me as possible, and when anything interesting catches my eye, I'll take a photo of it and from there spin an angle for a post.
I guess probably cos my blog is themed towards love and marriage, dating, relationships, it's easier to focus.