That said, there also are mistakes I make time and again. These blunders are so simple, so obvious, they border on amateur. Though it's embarrassing to admit them, I hope by reading about them you'll avoid making the same mistakes.
1. I Forget We Have to Turn Off All Devices
E-readers are a godsend to a regular traveler, and I load up mine with magazines from finance to gossip, newspapers and, of course, a few books, all to be ready for whatever mood I may be in. I sit in my seat smugly thinking how unencumbered and uncluttered I am (I am so put together!) until the cabin door closes and I realize there will be a full hour (counting both ascent and descent) when my device is just a piece of expensive plastic and my only recourse is the airline magazine, which I read on a previous flight, or the totally outlandish products of SkyMall. Did you know that you can buy a yeti? Remember non-electronic reading material.
2. I Neglect to Check the Weather Forecast
I have this uncanny propensity for thinking that whatever weather I am in will be the same weather I am going to. A cold, blustery January day in Brooklyn? Singapore can't be that hot, right? I have a general sense of warm vs. cold destinations and pack accordingly, but I rarely look to see what the specific temperatures will be while I'm at my destination. If there's a fluke heat wave or a chance of rain for the entire week, it never fails that I'm completely blindsided.