I found several files that should have been deleted upon reboot or exiting the program, but they're still there.
Well, I seem to have 22.7MB in /tmp
and much of it is >2years
old! It hasn't done me any harm, but I expect I should clean up.
Not quite sure where I should put a rm -rf /tmp/*
without fouling something up. Maybe in /etc/rc.d/rc.local