>>13019317One beer leads to another. But if you said one beer it was for reasons of needing to be sober for some job or whatever. So two suffices.
A couple of beers, you clearly have a casual day ahead of you. So fuck it.
A few beers, you got nothing of obvious need of attention. So fuck it, again.
One beer leads to another + what you will be doing later (limit).
I'm from Bolton, North UK, I would know. Beer maths, is what I know well.