Write on anything that gives opinions, that informs or educates you or others to help ease the way of living and doing things or any solutions to problems, big or small, that you learned or innovated are ideas.
A topic or subject matter like ‘Politics: A Dirty Game’, ‘American Democracy’, ‘How to Get Music from Youtube to Your iTune’, ‘Smart Preparations for Mountain Hiking’, ‘Ways to Do the Effective Study for the Final Test’, ‘Cracked Windshield? I Have the Solution’, ‘Make a Subway Sandwich at Home’, or any topic you choose to write that you think informs or educates readers as an idea.