Memorizing with mobile phone camera & mic

Mobile phones have 'voice notes' and 'high-res camera' that help you remember things.
Use camera to record picture, microphone to record audio.

prices and products in store

whole shop, you can later check if they would have that product

making pictures of opening times

before and after repearing that server take a snapshot

maps and bus timetebles

passwords, cheats for console, tutorials;

when u work on remote computer upload files to web and than shoot file url "code"

have phun, shoot desktops, uniforms, anything that may come handy later