What's the most expensive category that is listed in your expenses portfolio and how do you plan to reduce it?

Acutally is transport, thinking of using concession card

For myself, food takes up most of my expenses. I plan to reduce it by:

1) drinking water instead buying drinks

2) drinking free coffee from the office instead of buying coffee

3) eating at hawker centres instead of cafes/restaurants when hanging out with friends

4) dabao-ing food from home

I am using the Seedly app to keep track of my expenses right now and it always motivates me to cut back on my spending when I see the amount of money I spent on food each month.