Not all renovations are created equal—some will rocket your rental’s revenue, while others are about as useful as a screen door on a submarine. At All About Design Studio, we believe in making your space so irresistible that guests will fight over your booking calendar (figuratively, of course—no actual wrestling in the foyer, please). Here’s our not-too-serious, but totally serious, guide to the best upgrades for your short-term rental Return On Investment (ROI).