I would love the addition of a “Clean project” option to the right-click context menu on uproject files that deletes all generated files (Visual Studio project, Xcode project, Intermediate, Saved, etc.). Two use cases that make this a useful feature: cleaning up your project for a rebuild after updating engine versions, and cleaning the project before you push to VCS or share the project with someone.
Take a look at the UWrangleContentCommandlet commandlet 
The saved and intermediate folders can be deleted from the explorer… No harm done…