Towards the last days, spend some 1-2 hours picking blog printouts to read en-route.

• Priority #1: productivity — avoid wasting the learning impetus/energy/power-surge. Since we can’t get exactly the right amount of books, I’d prefer having some books unread rather than having too few tech books to satisfy my learning appetite.
• Priority #2: light weight, esp. when I need to carry the small luggages long distance
• .. If I have a laptop with git repo, I could cut down the number of books.
• Favor two thin books over one thick book for the same weight
• Favor new, unread books
• Favor print-outs and magazines — can discard
• avoid tombstones – (counts as 2 books) only if you read it for 2 hour or more
• Magazines in Chinese like 读者? higher “value”. I did carry but didn’t read
• Magazines in English like Reader’s Digest and Fortune? I did carry but didn’t read

Total weight — of books should commensurate with end-to-end trip duration. Note some unpredictable portion of the entire journey would be sleeping hours, so no exact proportionality. For example, my current goal/guideline is

• for a 20-hour long flight (assuming extra hours in hotel), carry 4-5 books of average size excluding magazines and print-outs.
• xp: 25 and 31 Mar 2018 trips I only needed 2 such books and no movie
• xp: late Jan 2019 flight I carried about 3 tech books but I don’t remember reading any of them