babycutie,
I bought from Annie b4. I agree with you that to get free delivery usually need a large quantity, otherwise must pay for delivery, or self-collect. i think her prices are reasonable, quite similar to bbshop. But at times, when supermkts have sale, it's quite cheap oso, recently just bought enfagrow 900g for $19.90 at ntuc, that's the cheapest i ever paid, but promotion ended already...
i like drypers, price quite similar to PetPet, good thing is always got promotion at supermkts, so will stock up during sale!