Creating Temporary Projects in Visual Studio
Molto molto utile:
Menu: Tools -> Options -> Projects and Solutions -> General
Ever just want to crank a project but not keep it around? This is particularly useful if you are showing a colleague something real quick or doing ad-hoc demos. All you have to do is go to Tools -> Options -> Projects and Solutions -> General and uncheck the “Save new projects when created” option:
This has some interesting side effects. For example, when you create a new project now it will NOT have the usual areas for save information at the bottom of the New Project dialog:
The good news is you can now create projects all day long but can defer saving until you are ready.
Fonte: Creating Temporary Projects