Over the past three months, available short-term vacation rentals have increased by 19 percent from the companies Vrbo and Airbnb in the Phoenix metro area. Whether you’re looking for a place for a family getaway, bachelorette party or quiet staycation, these homes can offer a cozier and more intimate alternative to a traditional resort vacation. Here are a few of the best short-term vacation rentals across the Valley :  SCOTTSDALE Desert Villa in North Scottsdale...