Sometimes there's some program somehow auto-starting, you want to either to not have it auto-starting or change some environment variable, then you don't see it anywhere on Openbox' own autostart, or on other possible autostart-like scripts on the home folder, like ~/.config/autostart, maybe .Xsessionrc and the like, and google's results end up in threads of people asking the same question and not finding any answer... and only after a reasonable amount of time you remember there's /etc/xdg/autostart,...
