Putting her clothes in ziplock baggies will help to keep them dry, clean and organized until she wears them, also give her a laundry bag to put her dirty laundry in each day. To keep the laundry bag from being an overflowing mess you could tell her to fold the dirty clothes before putting them in the laundry bag. Also mark all her other things as well as her clothing. Things like her flashlight,mess kit etc... can be engraved with her name using a cheap engraving tool found at any hardware or department store, or you can use permanent markers for most things.