Go with a home rental for long stays or large groups. While home rentals are not always a more cost-efficient option than a hotel, the savings grow if you’re staying for more than a few nights or with more people than fit in typical hotel rooms. The median nightly rate on a seven-night stay at an Airbnb, for example, is 32 percent less than the rate for one night, according to a Nerdwallet analysis. The same report showed that booking an Airbnb for six adults comes to an average 33 percent less than reserving three hotel rooms.