Ever have those times you are in the middle of a project and want to test out a simple one or two line method just to make sure your brain cells are still flowing, but you do not want to create a temp project just to test those few lines? For some time now I have used the Snippet Compiler:
http://www.sliver.com/dotnet/SnippetCompiler/
For just those situations. You do not have to make a project or even save a file, right there in its basic IDE, you have the frame of a console app ready to go, just plug in your lines of code and hit run. Simple and very handy!
The reason I am writing this today, is that I pulled it up to test a few lines of RegEx (yes, I already the them in Expresso, but wanted to make sure there were working as expected in my app). That reminded me to make a post about it. I posted last year about this, but thought it deserves a bit more attention as it is so useful in my toolbox :)
Not only the Snippet Compiler, there are a number of other handy projects at Jeff's site. You might also take a peek at his blog!
http://www.sliver.com/dotnet/