saag paneer?

Nah, you're nobody without a milk crate strapped on the back. Fix it on right, and you can fit panniers as well. The only downside to the classic crate is that it's not big enough for bulk toilet paper AND a handbag. Hence the need for a hitchable trailer as well. The best of which can be detached easily enough to use as a shopping cart inside the shop and then just hitched up and go when done. Also allows for transport of squashables like iced cake and the like - which doesn't survive well in panniers and/or crate.

@Nath @Thornburywitch
An Australian unit of measurement that applies here is the milk crate. a bottom end attachment for a bike carrier will carry one persons weekly shop. attach with cable ties or similar. Wife sold our Yuba brand Boda-Boda cargo bike. I still commute with pedal power.