Another good thing about learning UNIX (or using Linux) is the ability to write code snippets that could automate daily chores (you can do in Windows too, but I am not going to speak about it here).

Some of the code I enjoyed writing and using is, code to remember directory paths I visited (I visit lot of them, and it is a pain to type lengthy ones). A wrapper for "ssh" to remember hosts and list them (again I had to visit bunch of them daily, and pain to type fully qualified host names), just like PuTTy-saved sessions.

These tools really boost the productivity and joy to use.