I shudder to say this as I'm anything but a fan of theirs, but the Green Party have long suggested this. I'll accept they have the same chance of coming to power as I do becoming the Queen.
I kind of sit on the fence. Yes everyone should have a certain standard of living but I'm not sure just giving out cash is the right way to achieve that. It's a bit like Child Benefit - who really uses it for the purpose for which it was given ? Instead it should be free school uniforms, food...