Kay gives great advice. Spirits are your best option if you intent to stick to plan whilst you're away.
However, I know ALOT of people who don't necessarily stick to plan rigidly whilst on holiday, but stick to it right up to the minute they go away, and get right back on it when they get home, and they stick to it as much as they can whilst away.
You are meant to enjoy yourself on holiday, so don't feel like you have to stick 100% to plan if you would like a couple of pints one night
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