Dont drink and drive,use phones.or overload your car with passengers,at Christmas.Options are are a reliable sober driver. Mini cabs,takis. If your guest are expected to stay,buying blow up mattresses from Argos are a good idea. Parties usually go on till dawn,clearing up ,you will need to remove the drunks out,open windows for blast of fresh air. Anyone capable should be enlisted to clean up and help with breakfast. Dont forget Febreze spray. Very important. If you are legless, mission failed.