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.
Now that laptops (including but not limited to macbooks) can charge via USB C I just have one charger that I take for both my phone and laptop. Sometimes I take two cables so I can charge both at once. Sometimes I don't bother.
My problem was that I brought a USB-C to lightning cable to charge my phone off my computer, but I forgot a USB-C brick (and magsafe or USB-C cable) so that my computer had power. Fortunately there were Apple employees at the conference and they let me borrow a charger while we were hanging out at the bar!
It's night-and-day compared to the Intel MBPs.