| |vertical-align:top;[X]&lt;&lt;br&gt;&gt\\... saves every change immediately to the current file, and also creates an entire backup copy of itself with every change.&lt;&lt;br&gt;&gt;&lt;&lt;br&gt;&\\... you make a mistake, just go to the backup of the previously saved version and rename it to the original file's name. |vertical-align:top;...if you really need a backup copy for every change you make, as a safety net so that you don't lose valuable information because of mistakes.&lt;&lt;br&gt;&gt;&lt;&lt;br&gt\\... you don't want to hit "save changes" yourself but you need to save your data at every step.&lt;&lt;br&gt;&gt;&lt;&lt;br&gt;&gt\\... you don't mind the delay in automatic saves and backups as your file gets larger.&lt;&lt;br&gt;&gt;&lt;&lt;br&gt;&\\... you are willing to manually delete all those backup files (they add up fast!)&lt;&lt;br&gt;&gt;&lt;&lt;br&gt;&g\\... |bgcolor(#eeeeee):vertical-align:top;[_]\\... saves nothing until you click "save changes" in the right-hand sidebar. Changes are saved to the current file. |bgcolor(#eeeeee):vertical-align:top;...\\... you don't need the safety net of backup copies in case of mistakes, and would prefer changes to be saved to the current file.&lt;&lt;br&gt;&gt;&lt;&lt;br&gt;&gt\\... you prefer to save changes manually at regular intervals rather than wait while ~TiddlyWiki saves your changes for you.&lt;&lt;br&gt;&gt;&lt;&lt;br&gt;&gt;\\... you don't have the hard drive space for multiple backup copes or don't like deleting them.&lt;&lt;br&gt;&gt;&lt;&lt;br&gt;&gt\\... you are confident that your computer won't crash between your manual saves.&lt;&lt;br&gt;&gt;&lt;&lt;br&gt;&g\\... |vertical-align:top;[X]&lt;&lt;br&gt;&gt\\... saves an entire backup copy of itself, but only when you save changes manually.|vertical-align:top;...if you want the safety net of backup copies in case of mistakes, but you don't want one for every single change you make. &lt;&lt;br&gt;&gt;&lt;&lt;br&gt;&gt;...i\\... you prefer to