I am going to try stacking a David Jones e-gift card (10% off via my Entertainment Book) with the Cash Rewards offer on DJ's purchases (6% cashback).
I'd be interested to hear if anyone has successfully stacked them, because I noticed that Cash Rewards has a standard disclaimer that says "Rewards may not be payable if you pay by gift card".
P.S. Regarding the discussion from a few months ago about not being able to shop online with DJ gift cards, please note that there is now a link on the DJs homepage to where you can buy gift cards and e-gift cards, which also states that you can also use them online.
P.P.S. Before anyone comments on me shopping at DJs, note that I ONLY buy half-price and clearance items, and ONLY if they are cheaper than Priceline/Chemist Warehouse, and ONLY if I can stack them with free-gift-with-purchase offers LOL.
P.P.P.S. Note that DG's is having a "take an extra 25% off" sale this weekend (presumably on only certain items) and is offering a $20 gift card for $150 spent in one transaction (but this is definitely only on certain items).
Pretty sure you can, I've done it couple of times now.