I did away with a lot of things but one thing I couldn't shake (until I stopped working) was my morning vanilla latte.. I wouldn't get too stressed about it. As you say, if you're only having one a day then it shouldn't affect bub too much.

Alcohol in cooking shouldn't be a problem because the alcohol content burns off in the cooking process so it should only be the flavour of the drink in there.

I would definitely skip the entrees though...