Bait Shops that sell in small quantities in Sydney?

I’m looking for a bait shop that sells bait in small quantities. I don’t have capacity to store leftover bait at home so am looking to buy just enough for one session at a time.

I’m also looking for recommendations on baits to use. I have tried chicken and small prawns…both get nibbles but fall off really easy when casting or get stolen off the hook. I have had decent success with bread for small fish but am wondering what else I should try? Squid is on my list but have not tried yet.

I usually fish around the Harbor Bridge and also have been trying estuaries/creeks as well. Only have had success in the harbor so far