Here's a few additional items I have put in my caches:

- Small packets of sugar, salt & pepper you get at fast food chains. Put them in double ziplock bag

- Other items from fast food chains ( like paper towels and plastic spoons/knives ..etc)

- A cheap can/bottle opener

- Few pencils and crayons my kids have wasted

- Newspaper ( to sit on, or start a fire, whatever. You can even make it in a cone shape and use as a loudspeaker)