a glass of wine such as the one you'd buy in pubs is no longer 1 unit... it's nearer 3

Huh. I didn't know that. Shows how long it's been since I went out for a drink, doesn't it?

On the alcopops thing - a lot of drinks I see on the supermarket shelves do seem to list the units on the bottles now. I know it's not compulsory (and likely should be) but it does seem to be happening.

Thanks for the info. I'm learning...