Päntsdrunk is a refreshing take on the personal-development genre. In Finland there is a special word – ‘kalsarikänni’ – to denote ‘drinking at home, alone, in your underwear’. With tips from finding the optimum room temperature to the perfect ratio of sweet-to-salty snacks, Päntsdrunk will lead you to a healthier, more energising and relaxing life – wherever, whenever.