The tide is in the coffee cup. That one still makes me scratch my head every morning........but I know its true.
Right you are, BBax . . . There is a tide in your coffee cup! Difficult to see, I'll admit. So, for the best observation points:
Low Tide -- Starbucks.
High Tide -- Dunkin' Donuts.
Somewhere in between -- Waffle House.
Each is best observed at its extreme during the Full Moon, ideally at the Bay of Funday in Nova Scotia, Canada. But, if you're on the equator . . . furgeddaboudit. Tides ain't hap'nin, either in the oceans or in coffee cups. http://home.hiwaay.net/~krcool/Astro/moon/moontides/