I was surprised when I first started vaping how easy it was to just keep vaping and not feel like a needed a cigarette. The best thing, though? Is how not that awful you will feel tomorrow morning. Remember that "nicotine hangover", when you smoked too much while you drank? Turns out it isn't a "nicotine" hangover at all. It's the cigarettes themselves, not the nicotine that makes you feel like death the next day (well, that and the alcohol...)
I'd say, bring a lower nic juice, too, in case you find yourself really chain vaping while you're drinking.