To quote Miss PN, it matters not what is in the box but every day is like a min-Christmas with lots of little goodies, or tat if you will.
May be some savoury biscuits, roll of peppermint, a battenburg cake, a few little packs of biscuits, soft moist toiletry tissues, surafce wipes, emery board, shower gel.
Most can probably be bought on camp but it is different getting it from home.
Weekend newspapers are pounced upon by all and sundry and read until the ultimate recycle.