My personal opinion is that the average person should stay away from day trading, as I believe it is essentially a form of gambling. Here is a brief excerpt from the Day Trading wiki page defining day trading, and a link to the full post is at the bottom.
The basic definition of Net Worth is:
NET WORTH equals ASSETS minus LIABILITIES
To calculate my Personal Net Worth, I use the following approach.
I was browsing Amazon for some books on the subject of Net Worth. The title and description of this one really caught my eye because it is similar to my philosophy.