I um'd and ah'd in the supermarket on my way home from work last night - should I buy a half-bottle of vodka or rum or not? But I knew that if I bought a half-bottle I'd drink it all, and that would have been over 13 units of alcohol. I did want a drink, though, so I bought a bottle of pre-mixed vodka and cola and, as I thought, I drank the lot. I didn't enjoy it though - I'm a bit fussy about the cola I use as a mixer - and because it was a pre-mix it was 'only' 6 units.
I think it's a good thing I didn't enjoy the drink, because I'm less likely to want to have more tonight - and besides, there is no more at home, and I'm not going shopping again just to buy a bottle.
I'll report in tomorrow with the unit count for tonight!