#3 Is a hoax does not work
http://www.snopes.com/photos/food/mountaindew.asp
#7 Sandpaper will not light matches unless they are the strike anywhere kind. Then, well, you can strike them anywhere, like on a rock. No need for sandpaper.
#11 You will freeze your a$$ off in a two person bag unless you spoon all night. To many air gaps for drafts to get into.
#13 Just steal the antibiotic ointment single use packets from the first aid box at work they are already packaged and labeled. That way you don't confuse the antibiotic soda straws with the KY soda straw.
#17 You should be using environmentally friendly liquid camp soap.
#30 I live in sage country, never seen a fire made entirely of sage keep mosquitoes away. I can't imagine a little bundle like that would do much.
#33 Everything I've ever cooked in a hollowed out orange tasted like burnt orange peel. This is one of those things that has been around forever and has never worked except in books.
#34 Or just use the back track function on your GPS.
#36
http://www.target.com/p/reliance-luggable-loo-portable-toilet/-/A-10305843, cheaper than buying the stuff to make the emergency toilet.
The rest of the stuff I've either used or looks like it would be okay. Especially the scavenger hunt for kids, what could possibly go wrong with that idea?