I have a nappy bucket with a lid for night-time wees and I'm not ashamed to admit it. There is nothing worse than being all cosy in your sleeping bag, but having that little nagging "I need a wee" feeling - and knowing that you have to get out, get a fleece and wellies on, get a torch, unzip several really noisy zips and trek across fields in the dark, trying to avoid tripping over guy-lines, in order to have a wee