With the great Amex deal posted by forumninja here I'm sure lots of people are getting a few giftcards via Westfield/Myer/First Choice. Be interested to know how people are managing their gift cards - keeping track of balances, expiry dates. Doesn't really apply for Woolworths gift cards as they have a great app to do it.
I had a look online and am going to give this one a go - PocketZee for Android. Added a gift card and the code. It looks like you can enter expiry and amount as well as take a photo of the card. Will need to manually change the balance as you go but I think its better than nothing at the moment.
texta balance on plastic cards (ie wish)
ecard that I get for coles, I print the barcode/pin and stick to flybuys card, then write balance on it