A Reusable Water Bottle can be filled AFTER you go through Security Check in with water fountain H2O, and re-used indefinitely to save you $3 each time.
Pack a 0% Liability Credit Card in your Checked Luggage, Just in Case Your Wallet Gets Stolen.
In Japan you can buy phenomenal Waygu Beef at any average supermarket. Twice the Flavor, Half the Cost!
Its remarkably the price as Angus in the US, but infinitely more delicious. Cooking it yourself lets you tell people ‘I cooked Authentic Waygu IN Japan, Jerk.‘
A Poncho that folds up smaller than a pop-tart might save your wardrobe one day.