Louise had booked sledging for our first activity and the boys were bouncing with anticipation. I was in similarly high spirits until I realised I'd neglected to pack my coat/any form of warm clothing for myself. As we entered the snow slope alongside other families who were head-to-toe in hats, gloves, and some (a bit keen) in full skiwear including sunglasses, I stood, shivering in my paper-thin jumper and began to appreciate why Louise deemed it necessary to organize her own birthday.