Running Ubuntu 14.04, and I have a script that is being run automatically when I boot the machine. For the life of me, I can't remember how or where I did this. 

I already checked:

* upstart (which doesn't seem to be available here, anyway)
* /etc/rc.local
* crontab (with @reboot)
* /etc/init
* /etc/init.d
* .config/autostart (doesn't exist btw)

It's a script of my own, so it's not some kind of malicious virus or malware or anything. I just can't remember how I did this, and would like to know.

It has a distinct name, e.g. like ~/MyScriptXYZ.sh so I could search for that, IF I know how or where..?? (I'm a novice linux user)