When it comes to the rainy season, us Brits are fully prepared with all the kit under the sun to stay dry and warm. But, as soon as the heatwave hits, we go into a state of panic, unequipped to deal with the sweltering summer rays. A small portable fan you can stow in your bag for immediate cooling is the ultimate warm weather hack. These overlooked devices may not be anything new, but they are absolute game changers. Whether you are braving the commute to work, soaking up the sun on a staycation