To tie in with Trail's special Mountain Genius issue, Trail and www.livefortheoutdoors.com present some special video tutorials to help you get a little smarter in the hills. Learning how to pack your rucksack, keep things dry and organised, and distribute weight correctly inside it is an underrated skill that can really make the difference between an OK day which ends with aches, pains and damp kit to a day perfect day. In this video, we show you how to keep your kit dry, maximise space in your 'sack and pack in a manner which makes your rucksack work with you, not against you