One of the oldest tricks in the book, er, history, is to use the tools at your disposal. A new tool is always nice but, frankly, you don’t get that many ‘new’ tools in life. So you are stuck with the ones you have. Far and away the best tool is education.  This means what you LEARN, not the number of books you have read or chemistry problems you solved. Common sense is not that common. To quote Will Rogers, “There are three kinds of men. The ones that learn by readin’. The few who learn by observation. The rest of them have to pee on the electric fence for themselves.”  If you get a chance, take a look at one of my short stories at https://retreatsfromoblivion.com/2018/08/29/the-matter-of-the-smallgarian-wall-and-the-portuguese-undertaker-by-steve-levi/ [See my books at https://authormasterminds.com/master-of-the-impossible-crime. See my webinar at http://bit.ly/2zjyiYG.]