only sometimes when im in the winter i use a colapsable water bottle to pee in the middle of the night or in the early morn.its so hard to get dressed and get out sometimes.then you have to rinse it and carry it .does anyone else ever do this?i know the couple of times ive done it ,it was alot less energy wasted but also it was kind of imbarressing to talk about.i learned it out west on the divide but used it as a kid on the AT.whats your method of dealing with cold nitime trips to the woods to pee?signed,...small blattermat.