@margareth14830 School galas are fantastic!!! You can often fill a bag for $10/$20. They are usually in spring though. Otherwise looking on marketplace and trade me for bulk items is fantastic.
@margareth14830 Join some local kids buy and sell groups on Facebook - I box up all my kids clothes they have outgrown and pop them on there for cheap. There are plenty of others who do the same!
@margareth14830 SaveMart in New Lynn has heaps of decent quality kids winter jackets on the racks atm. They can be a bit pricey but worth a look if there's something specific you're after since they have good volume.