Yes, it's so hard to hard to avoid alcohol and awkward questions over Christmas! My excuses range from "I'm driving" to "I have issues with wheat"... I've been on and off a Paleo diet for awhile so everyone now expects my odd eating.
Apparently caffeine is the worst if you're TTC, for both of you, so the DH and I have been off it all (including tea and chocolate) for three months. And men shouldn't have more than 3 standard drinks a week as they deplete the body of zinc, which is what the body uses to make sperm. DH is taking a zinc supplement to help as I can't keep him to 3 beers!! I'm avoiding wheat as my tummy doesn't like it, and alcohol, but that's pretty much it.
I'm so impatient too, I just want everything NOW!