In the May 1999 issue (Purge unneeded files from Windows, pp123-124), I listed some file types that you can safely delete. Eric Clark offers some additional candidates for the recycle bin. These are .shs files (scraps that you create when you drag information from an application to the desktop), .gid files (which Windows generates when you use Help and will simply re-create if they are missing) and .chk files (which accumulate whenever a ScanDisk run finds and corrects some errors).