hangover cures/prevention?

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I have a christmas night out with the girls tonight which i have been looking forward to for ages. Anyway i also have to get up as usual tomorrow about 7/7.30 to look after the kids as my bf is working at 9! does anyone have any advice on what i should do before i go out or when i get back or in the morning to not make feel quite so rough and hungover? Please don't suggest don't drink alcohol as i hardly go out and i want to have a few drinks! thanks in advance!!