Packing for a big trip is easy when you own hardly any stuff. And getting my backpack down from 45l to less than 30l compressed to airline carryon size was pretty easy and fun. Just need to get rid of 1/3 of my stuff so it's this small all the time..

(Some things I'm leaving behind temporarily included my hammock, kitchen supplies, and my bag of misc random shiz that comes in handy from time to time, so they can't really go long term... but I'll figure something out. I'm leaving my jeans (they split) and winter coat for good though.)