What's one of the best kept secrets among business travelers? Club level executive lounges. Our friends at Hotel Interactive wrote a great overview outlining the benefits of executive club floors, which offer everything from check-in and check-out services to food service. Specially trained concierges are also available to provide assistance with whatever needs guests might have. The article goes on to note: "At the Sheraton Denver Downtown Hotel, whose 5,000 square-foot club lounge is the largest in the city, hotel manager Chuck Schuringa said his club manager one time carried food from the hotel club lounge down two floors for a female guest who has to walk with crutches. 'Now she stays with us every time she comes to town,' Schuringa said."