Dec 2, 2013 8:55 AM
There's a reason all those little old ladies are hauling tanks with them into the Legion hall. Sure, some of them might be suffering from chronic obstructive pulmonary disease. But we're betting at least a few are rolling their gas around for the extra pep it puts in their walker-assisted steps. If you're not quite ready to hit the town with the same chic medical accessory, you can still reap the benefits of O2 at home with the Tranquil Sounds Personal Oxygen Bar ($400).