In this day and age of computers and word processing there is something we often overlook which is of great benefit to us. Quite simply, writing things down.
If yo suddenly come up with an idea, write it down, if yo don't you may miss that idea later. It serves a very useful purpose indeed. If you keep a list of ideas you will arrive at a point in time where your ideas might dry up. Where do you go from here? Just refer to your list and you will find a plethora of ideas noted down on previous occasions. Very useful indeed don';t you think?
So, keep a pad and pencil or some form of device that can write notes with you at all times, you never know when an idea will come and therefore be ready to record it.