Name it Kedai Keluarga see

Some variety - hot meal, sandwiches, croissants, coffee, ice cream - always a plus points.
People go to convenience store is not to buy pampers, shampoo, peanut butter or chips.
They want something to chew and filling.

Those that stick with general items, chocolates and some tasteless bread bun packed in 8 will have a hard time to survive.
Most convenience store is damn expensive selling a small peanut butter (good brand) at a price higher than the big peanut butter in teso or aeon big.

People dont go to convenience store to pay a choking throat price when you could have done your daily grocery from local supermarket.
The convenience store is for you to grab something eat at a instance, not a place to buy shampoo.