Some people are hardcore planners, scheduling every trip down to the minute. The rest of us enjoy a bit of spontaneity, which often means finding a place to stay on short notice. One:Night is perfect for such outings. Built by The Standard, this new app gives you a choice of carefully-curated hotels offering single night stays in New York and LA beginning at 3:00 pm, with a selection that changes daily and rates that are guaranteed to be the lowest available. And since a place to sleep is only part of the equation, it also offers up suggested timelines that will help you enjoy both your accommodations and the surrounding neighborhood to the fullest.