Dead drunk in Italy night before flying home (which involved a cab coming at 4am which was like 2 hours later, but that's another story.)
Got back to the room and my brain was in "think it all out" mode, as in:
1. I need to pack...
2. OK...That means I need to get out my suitcase and open it...
3. Done...ok...next...shoes first...one shoe...two shoes...three shoes...four shoes...
4. Great...time for a break.
5. Next...pants...
I think it took me an hour to pack, at which point I just stayed up, but I did get home with everything (except a few brain cells.)