McClean is an easy-to-use disk cleaning utility. Delete .DS_Store files, .svn folders, .git files and folders and thumbs.db files in seconds. All deleted files and folders are recorded in the Result log.
Mac OS X automatically creates hidden .DS_Store files in every folder to store custom attributes of a folder such as the position of icons or the choice of a background image. It might look unprofessional and distract from the important files if you share folders with a Windows or other OS user - for example as a zip file – and send also these hidden system files.