Things goes along with the author's "tmp cleanup" section, but I have lost valuable work on a number of occasions from hacking on random files that I created in /tmp under the assumption that they were throwaway junk files, only to reboot my machine a few hours later and have them automatically deleted by the OS. It's much safer and just as easy to use a "$HOME/tmp" dir as a junk drawer and then manually clean it up from time to time.
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