Best deal I can find for T&W codes, others are max $25 or $30 off $199 or $250 spends.
Some postcodes excluded (including all postcodes in NT). Code is unique & gets emailed to you on the early arvo of your bday. I think the min send includes postage, but happy to be corrected.
Shipping is pretty killer @ T&W, (seems built in) but when you create an account and add your DOB, you'll get an email in the afternoon (1pm ish here) of your bday (probably doesn't work for same day account creation but does work for next day) for $50 off a $199 spend.
Hope it helps.
Birthday Offer: Free shipping on your birthday, max discount $50
Promotion Period: Ongoing
Promotion: Free shipping on your birthday, max discount $50
Promotion Details: Spend on your birthday and ship free when correct code sent to email is applied at checkout. Code expires in 30 days after email send date. Minimum spend $199.
Not sure what to buy from them though