Oh, fergit yer blasted tea and 'when in Rome'. We'll show ya how to mainline Co-cola (or R-o-C, if you really get out in the country), take Dr Pepper breaks at 10, 2 and 4, throw down Mountain Dew, and suck down Cajun Commuity Coffee-au-lait. We'll move on to Slurpees and frozen daquiris as you progress...Now as for Marmite, most every town of good size will have a Home Depot where you can purchase your choice of spackle, wallboard mud, or pre-mixed mortar by the bucket. So you'll be fine!