Before going out on the juice downroute:
1. Set your alarm clock (or 3 if you are as paranoid as me).
2. Pack your suitcase, to expedite your departure the next morning having failed (1.).
...may I add:
3. Shave and dress in flying kit on return to Hotel. Sleep in same. So when you sleep through alarms 1-3, and the phone call from reception, you are ready immediate departure when your co brings the duty manager to your room with the master key....
16B