Creating stories can be a perplexing/confusing topic since everybody seems to have a slightly different way of going about it. For trivial details, I’ll use random generators/pickers, to get a list and see “what fits”. I’ve got a database which is close to the “lore bible” for my originals. I’ve written small programs to help my writing (date generator, that random picker from a file, database management, map aids, etc). I’ve drawn crude maps, both on paper and in drawing programs. I’ve experimented with 3D programs, mainly for layout of major locations, just to give an idea. I’ve got a bunch of spiral notebooks for my potter universe – which has turned out to be highly useful when returning from a decade “on-hiatus”. I’ve got a myriad of small text files for my potter universe, with backstory (also useful after that long on-hiatus). A three-ring binder with loose paper for the original universe.
As to actual writing, I don’t write a super-fine outline, just a crude one. Write a few key scenes, if needed – just so I’ve got an idea of where I’m heading. Bring up the “inspirational” pictures, and start writing. I’ll write notes which I’m about to end for the day, so I can pick up where I left off. I’ll jot down a bit of an outline for a chapter, when it’s important. And I’m not afraid to cut/cull material or alter the outline if the characters aren’t agreeing with it.
I also try to keep a spiral notebook handy for that occasion when I hear something, or come up with something, or even after a talk with a coworker – I’ll jot those ideas down, which gives things a better chance of being remembered. And I’ll typically find my brain the *most* creative, coming up with the *best* ideas as I’m trying to get ready for work after a long weekend….