I come from a lisp background where I could type in snippets to the command line while coding, to make sure I get a small chunk of code correct the first time. Its great for testing string formatting, simple math calls, etc without having to recompile a whole project to test small changes.
Is there a feature or add-in in visual studio 2010 to get this type of functionality, say like a watch window that runs when you aren't actually executing the program?