If you want to write anything for publication or pleasure may as well get yourself a notebook or exercise book depending on how mobile you are during the day.
Using a notebook, Dictaphone, or mobile phone somehow, may be good for people on the move. For writer’s in one place most of the time, all of those ways are good, but a writer in one place may use an exercise book effectively.
The idea is to write, jot, or note down what comes to mind, your inspirations, your thoughts, that may become stories, poems, articles, and so on.
But not every idea is worth its weight in gold.
When I’m in a critical frame of mind, there are ideas I see in my external environment, or whatever ideas I’m engaging with, that I may dismiss.
But if I reviewed the product I would give it a chance. At the end of engaging a product I may ask if the idea stacked up.
Even asking that question is slanted on the negative. If one has to ask it, what does that say about the product?
The lesson of that is some ideas are always going to be poor and some are going to be good.