Best way to run command on system start

Hello,

So I have been having issues with setting the brightness on my E6430.

xbacklight seems to do nothing, and setting brightness via xrandr seems
to just shift the colour of the pixels to a darker colour... instead of
decreasing the physical brightness.

backlight(8) does work, and it works very well... but there does not
appear to be any config or way to get it to persist across boots.

I have read the forums and seen suggestions of using a rc service to
set the backlight on boot, however there must be a better way to do
this.

Any suggestions?

Thanks in advance.

Take care,
-- 
Polarian
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