My preciousss....... I think it is my Rubiks Cube, I tend to take it everywhere I go, and solve it everytime I got three minuts to do so., that's about the maximum time it takes me to solve it..... Also, I always get annoyed when people touch my cube.... IT'S MY CUBE, MY OWN!!!
Also, my Binas... Well, I suppose only Dutch people who took Chemistry at school know what a Binas is, so I'll have to explain it. Basicly, it's the bible of science, every possible formula one can get at school is in there!!!
As it says on the front 'Het Informatieboek der Natuurwetenschappen' (The Informationbook of Science).... Basicly, you're unable to do your Chemistry homework, make Chemistry test, or do anything with Chemistry without that book
. (you also use it for Physics and Biology, though a lot less).
I suppose I would also completely go insane if I lose my NIV-bible (WHICH I HAD TO IMPORT OUT OF ENGLAND!) or even worse.... my Statenvertaling (a certain Dutch bible) from somewhere between 1637 and 1657......