Visual Studio has a "Clean Solution" command, of course, but it's conservative in what it cleans and sometimes leaves detritus around that most of the time you want eliminated. It seems to only clean files -- DLL's and PDB's, mostly, but also content configured to be copied to the output folder -- that are created by the current source code and copied references and other files. It also does not eliminate files created at runtime -- for instance error logs -- that your program may have created. One situation in which files are not deleted by the "Clean Solution" or the "Clean Project" command is when you remove an assembly or project reference from a project before you clean it. The removed reference remains in your project's output directory.
Let Git come to the rescue! Assuming that you have a sensible .gitignore file, the following command will delete all bin and obj folders from your project and all subprojects:
