1. You packed so much you can barely get your bag onto your back.
The first week you feel so proud of yourself for miraculously managing to fit 90% of your house into your bag, and you feel bad for those deprived backpackers carrying just a few belongings in small backpacks.
That’s cute. Week two? You’ll be cursing every time you have to look at your stupid bag once you realize that: a) you’ll end up wearing the same t-shirt every day, so why the hell you thought you needed to pack 16 shirts is beyond even you at this point, b) you don’t have a centimeter of room in which to fit a snack or a single tiny souvenir, and c) you struggle, embarrassed, for five minutes every time you try to lift your bag onto your back before you finally give up and need to ask a friend, doorman, bus attendant, taxi driver, or total stranger for help hoisting the beast up onto you.
(Meanwhile, please know that those ‘deprived’ travelers with small backpacks and few belongings are standing by, smirking, and getting great amusement out of the show…)