On the way round its bananas and cereal bars or maybe a mars bar for me.
Then i usuall grab a Subway on the way home for lunch.
Steak and cheese with jaelapenos and south west sauce....mmmmnn.
Thats if i don't get a lasagne or summat at the clubhouse.
usually have a bottle of water or fruitjuice in the bag; that can last the day, have to be replaced half-way round or still be there a month later.
winter medal, flask of wobbly coffee - that always gets consumed, either during or after, and is sometimes shared.
carry cereal bars, usually forget them, throw them out when found ages later
on a society day, the precursor bacon buttie is a must although the offerings at some tracks are pretty meagre.