Eco Friendly
So you're in a field and you're about to get a phone interview for your ultimate job (and it's dark). Your battery runs out and it turns out shouting and shaking it doesn't work. If only you'd worn your Solar Powered Backpack, you sigh. Out comes the Shake Torch. Miles away from civilisation, you thank God you bought the Wind Up Charger for this very emergency. And the world was saved.