#7: Seeing in the Dark
Is there anything worse than having to get up in the middle of the night, and when you flip on the lights, your eyes aren’t used to it and it’s so painful and disorienting? OK, yes, obviously there are millions of things that are worse than that. But it doesn’t mean that it’s fun! And it’s also pretty irritating when you have to turn the lights back off, and suddenly you can’t see and you stub your toe on a chair.
This hack is ingenious yet so simple that I cannot believe it never occurred to me. After all, you’ve got two eyes, right? Why not use them separately? Let one eye get accustomed to the brightness, and keep the other one ready to help you find your way back to bed in the dark.