I end up forgetting my charger when I go on trips because 99% of the time when I unplug my laptop at home (to use in a different room), I never need the charge cable. It used to be 50% of the time I'd take the cable with me, so I could be somewhere else for 2+ hours. Now I so rarely bring the charger that it just doesn't even occur to me when I'm unplugging the thing to pack.
It's night-and-day compared to the Intel MBPs.
