Turning up the central heating and attempting Geri Halliwell's home yoga video is not only tricky in the face of living room furniture, it's also far less glamorous than today's deal... We're offering you 20 hot yoga classes for just £30. That's 88% off Fitness On Fire's regular price of £240. With its team of certified instructors and specially kitted out studio, Fitness on Fire aims to help you achieve a state of inner calm (and a toned butt!) with its revolutionary hot yoga classes. The idea behind hot yoga is to make your workout more intense and effective by heating the studio to anywhere up to 50°C while you exercise. Don’t worry: there are glorious showers and separate changing rooms to help you recover afterwards, plus mats are provided. Based near Old Street station, classes run at a range of times every day, so there's bound to be one to suit you - why not take a look at their schedule?