I find my reaction to situations is the most useful tool for writing.
Sometimes I am moved to laughter, sometimes outrage, sometimes compassion, sometimes it's intrigue or frustration, sometimes it's disbelief or curiosity.
For example when I was in India many years ago I found a magazine article about a royal family that took up residence with its servants and dogs in the first class waiting room of New Delhi railway station for seven years as a protest over their ancestral lands being taken from them.
This intrigued me and 25 years later I researched to see what had happened to them and wrote a hub about it.
Meanwhile my frustration at my husband's attachment to the TV remote prompted me to write about marrigage and remotes in a humorous tone while outrage and compassion resulted in hubs on the plight of Tibetans.
Disbelief and curiosity resulted in a hub on gun ownership in the USA...and so the story goes.