Today I told my boss, I m gonna leave.

Just some thought I have in mind after I talked to my boss: I think small companies that have frequency movement of manpower should set up a logging system that track the experience of each of such manpower. This is very beneficial to the company because it reduces the cost of re-learn stuffs that previous people has encountered. Imagine, if an employee spent 3 days solving a bug which no one else knows. Then he left the company after a few weeks. And the one who continues his work would also encounter this bug. If he is more skillful, he may solve it in 2 days. But anything more than a search and answer is a waste of effort. In other word, documentation for small company is a crucial performance improver as well as money saver (time is money).