Review all the SPSS and other files you have created so far in working through this book. Delete redundant files (but ensure your latest version of each file is backed up). Arrange the remaining files...

Review all the SPSS and other files you have created so far in working through this book. Delete redundant files (but ensure your latest version of each file is backed up). Arrange the remaining files methodically in folders, renaming them if need be. Examine and edit your syntax (.sps) files and add any commentary necessary to enable you to return to earlier work and understand what has been done.