Retrofit your Nintendo DS into a notepad. You can take notes even without batteries. Idea is to create a writable surface on the lid of your DS, using a Scotch Magic tape.
Step 1: Tools
We'll need the following things for this things:
1. Scotsh Magic tape (cos it has a writable surface)
2. a paper knife or a pair of scisors,
3. a pencil of course (for taking notes)