Using a battery as an iPhone/iPod Touch stylus
This tip will come in handy. if your fingers are cold, damp, greasy or you are blessed with large, wide digits that make it difficult to type on your iPhone or iPod Touch.
A standard stylus does not work with Apple’s capacitance screens. The negative end of a AAA or AA battery works just fine.
Lol I found this out today when testing random objects, also a nail with a ridged flat end worked too