Status Update: Missed Flight

I missed my flight. I'm accessing the Internet from a free terminal that's set up by Domestic Arrivals at Kansai International Airport. I have the beginnings of a nice set of blisters from carrying my luggage around, as a bonus.
So, for the "WTF HOW?":
- I underestimated the amount of time it would take to get everything moved out of my apartment and packed, etcetera. Even with the massive - and I don't want you to think I'm overstating that - amounts of help I got from QB, Yanavy, Angela, and Cassie, I ended up leaving nearly an hour later than I had planned to.
- In an effort to avoid spending massive amounts of money on sending a bunch of books to the US by mail, I picked up a surplus duffle bag and shoved all the books in it and a bunch of clothes. I then stuffed it and my decent-quality duffle bag (with wheels!) until they were at the the weight limit, 23kg or 50 pounds, and preceded to attempt to lug these around on the train system. Now, I think what got me here is that I somehow was thinking 23 pounds when I was thinking about how much the whole thing would weigh. But that's 50 pounds times two is 100 pounds, plus a further 15kg (35 pounds) of backpack, camera, etc, and I'm hauling 140 pounds of crap around, and 50 pounds of it is in a completely static sack - i.e., a duffel bag.
That wasn't so bad, but what is usually a five-minute transfer became a thirty-minute ordeal with rest breaks at each flight of stairs.