"The man with a new idea is a crank until the idea succeeds."- Mark Twain.
Everyone has one idea or the other and as the day dawns, we wake up feeling ready and set to keep churning out more of these ideas. It is now up to the individuals to either make it become useful, great and profitable or not.
Good ideas are easy to come by, what isn't is, the ability to push it into becoming effective and useful for human consumption.
When we have these world changing ideas, they are usually nothing until they turn out to be something that has a bearing on productivity ala human covering.
Be your for whatever reason you find but, you have to be able to lay hold and stake to what you are presenting to the world as an idea a d wait to see it work well before you up and move on to the next one.
If your very great idea isn't succeeding and making people smile and happy, it just means you are a bloody crank with nothing but a white piece of paper with so many empty lines unused lines.
When the good ideas come to you, take a look at them and try it in for size. If it fits, it definitely will happen for good but if it doesn't fit, it's just gonna be another one if those unused ideas.