My then pdoc told me to skip my meds. He knew I didn't make a habit of drinking and only really drink on New Year's Eve, so there was no fear of it being a pattern with me skipping meds.
Even if he didn't say so, logic dictates that its ok. How many people have skipped a dosage because they forgot and were fine? They even tell you when you're on Lithium to not take a double dosage if you forget, just to carry on as per normal when its time for the next dose... Not advocating stopping starting meds, just pointing out that what to do is documented when you do skip a dose for whatever reason.
Enjoy Dr Skipper!