If you know you’re going to be moving from a well-lit area to the dark, you can cover one of your eyes—like a pirate with an eye patch—for a few minutes beforehand to see better in the dark. More » (from Lifehacker http://lifehacker.com/5888104/think-like-a-pirate-to-see-better-in-the-dark)
(from SlickDeals.net http://slickdeals.net/permadeal/69714/virgin-america-virgin-america-20-off-flights-for-travel-between-april-11-and-june-13)