Use code: APPMARCH at checkout for $1 shipping on small items. Supposed to be a Noel Leeming app exclusive. Showed me what the code was at checkout and it works fine through browser.

Terms & Conditions
"Only includes items with an initial $6 delivery fee. Excludes large items. If a large and small item is added to cart, a $5 discount will be applied off the large item delivery cost."

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This goes well with CSC discounts and ZIP10  ($10 off $50 spend)

Example:
Panasonic Eneloop Pro AA Size Rechargeable Batteries 4 Pack (Cscbg Main $16.96 ea.)
x3 = $50.89
+ $1 delivery = $51.89
Checkout = $49.89 + $1 delivery = $50.89 (unsure why)
- $10 (ZIP) = $40.89