So, like the morning after a gigantic house party that got serious out of hand now comes the clear-up operation.
Britain has spoken, it wants to leave the European Union. But how exactly that is done, and how long it will take is far from certain.
Like that one annoying friend, having created the mess by suggesting the party in the first place and then insisting on some drinking games, David Cameron has chosen not to stick around, exiting out the front door early this morning without doing any cleaning up whatsoever. A new Prime Minister will be in place by October and it is likely that Article 50 of the 2009 Lisbon treaty will be triggered shortly after this - if not before.
This gives two years for the UK to negotiate the terms of its departure from the EU, after which it will then have to do three things simultaneously: negotiate a new deal with Brussels, negotiate new trade deals all around the world and also replace all of the European laws with its own. Even the experts have no idea how long this will take, or - obviously - how successful these will be.
But here's a few ideas of just how Brexit will affect you.