The Main Thing
Always know what is going on around you.
What started out as some advice for my kids when I taught them to drive evolved into something that is applicable for life in many situations.
While driving – always know where other drivers are in relation to you and keep an eye on them. Always practice defensive driving. They may not be as good a driver as you.
At work – know what your boss’ position is in the company and how well he/she is doing in their position. Do your best to help them strengthen that position, at the same time keep your options open.
On the subway (or anywhere there a a lot of people close together) – take mental notes of the situation – situational awareness which will be mentioned in a different nugget. Look at each person around you and let Holy Spirit guide your attention. 99.99% of the time you will feel safe, it is that .01% that can bite you in the rear.