I recall when I first read Pragmatic Programmer that they suggested using scripting languages to make you a more productive programmer.
I am in a quandary putting this into practice.
I want to know specific ways that using Python or Ruby can make me a more productive .NET developer.
One specific way per answer, and even better if you can say whether I could use Python or Ruby or Both for it.
See standard format below.
Cross platform
Compared to .NET a simple script Python is more easily ported to other platforms such as Linux.  Although possible to achieve the same with the likes of Mono it simpler to run a Python script file on different platforms.
I'm a .NET Programmer. What are specific uses of Python and/or Ruby for that will make me more productive?