For women, 1-2 drinks per day has a protective effect on developing heart disease because of the temporary lowering of blood pressure. For men, it's 2-3 drinks per day (both for average sized humans). This has been shown and replicated many, many times, much to the surprise of the initial researchers. (Nurses health study, framingham heart study, etc.)
Smoking "a little" as said by op means social drinking, "a little." This, to me, implies infrequently.
Anywho. Just wanted to throw that in there. I don't drink but maybe 2 drinks a month, but I still have true friends that drink occasionally. My alcoholic friends and family...yeah, i've said what I've needed to say, and made my peace. No need to be militant and pointing fingers at everone who has a drink for their own good from whatever viewpoint that I have...because, hey, I could be wrong!
I just have my own experiences...everything else is just something that I've read or heard about. Play nice!