Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job, buy the very best you can afford.
I try to get rid of people who confidently answer questions about which they don't have any real knowledge.
The world is a place of the living, and the dead have no place in it.
In the end, we are all alone, and we must face the consequences of our actions by ourselves.