Everyone has ideas.
Not everyone’s ideas add value though. For an idea to add value it must solve a meaningful problem. (More on this some other time)
For an idea to be of value, one must act on it.
If you want to make a meaningful difference in your own life and/or the lives of others, keep this principle in mind: The longer the duration between the time you have an idea and the time you act on it, the lower your chances of actually doing something about your idea.
Don’t tell people about your ideas. Don’t blog about them. Do them.