Cooking advice
One of the best elements of travelling is sampling local delicacies, so please don't order a burger and chips when you are in India - not only is the meat likely to be of a poor quality (sometimes so poor that it will make you sick), but you are turning down some of the most wonderful food in the world - and possibly offending your hosts.
Making your own lunch instead of buying from a sandwich shop saves on packaging, and could also save you approx £4 a day or £1,000 per year!