I sort of regret spending $10 on the GPS sheet mask from Troiaureke when Cosrx clearly has something similar for half the price. This sheetmask kit from Cosrx not only includes a sheet mask, but also comes with a toner pad and cleanser. It’s basically great for travel and very convenient on a plane ride. The ‘kit’ includes a sheetmask, cleanser, and a toner pad. All you need to do is carry this into the airplane restroom, proceed by cleansing your face followed up with the toner pad, and then apply the sheetmask. Voila!
For germaphobes who would rather not wash their face in an airplane restroom, spritzing your face with a face mist would probably be the way to go. Some mists I would consider buying would be: