[jambutty]

Originally Posted by MargaretR

I was made aware, after attending a recent meet, that 2 pints would put me slightly over the driving limit.
So 3 halves, or 1 pint and 1 half, is now the rule.
Two 2/3rds = 3 halves
Which is the cheapest way to buy beer?

Weren’t you against a total ban on drink driving?

I think that your maths is slightly awry.

Two 2/3 = 4/3 or one and one third.
3 halves = one and a half.

Finally, to answer your question. Get someone else to buy.