HIPHIP
From the e-mail blast:
To celebrate our 4th Birthday, we would like to offer you 20% off purchases from the KeepCup online store for four days*.
Simply use the code 'HIPHIP' on checkout.
*Offer valid for individual purchases only. Valid from 9am 9th June until midnight 12th June AEST.
No rainchecks.
If you don't have a KeepCup, you're absolutely crazy! I take my KeepCup on the bus every morning with some nice hot chocolate in it.