I have cast my vote on this oh so important topic. I was so, so shocked to find that this wasn't the default behaviour. If this weren't the internet I would've scribbled an 'X' on a piece of paper and placed it into... A ballot box. A temporarily sealed container, usually cuboid though sometimes a tamper resistant bag, with a narrow slot in the top sufficient to accept a ballot paper in an election but which prevents anyone from accessing the votes cast until the close of the voting period. When very large ballot papers are used, there may be a feeder mechanism to assist in the deposit of the paper into the box.