Lots of things can frustrate you when you're traveling. Delayed flights, road construction, traffic. But when you finally get to the hotel, ready to plop down and get some sleep, and the curtains are letting in a sliver of light that always seems to shine right on your closed eyelids. Since I'm wearing my hair short these days, I can't use the  hair clip trick, but I do wear glasses, and they led me to this hack using an item from my purse!