Carrying three chargers with you – one for your mobile phone, one for your tablet and one for your laptop – is a common nuisance (and a mess of cables) for European citizens that the European Commission is proposing to eliminate. It's not just the inconvenience of carrying this many cables, it's also the environmental cost of making them and also disposing of them at current consumption rates. On Thursday, Brussels proposed revising a European directive to force manufacturers of smartphones, tablets, computers and game consoles to use the same charging technology.