High5 Zero Electrolyte 20 Tablets at Chain Reaction Cycles for $4.49 a pop
Chain Reaction Cycles tend to cycle (......!) electrolyte drinks on bargain basement every couple of months. Usually you need to be blisteringly fast to get any as the sell out.
They've currently put Citrus and Berry High5 Zero Electrolyte Tablets out $4.49 per tube. Thats an awesome price given that buying the same locally will cost you up to $14.95 and the nearest Chain Reaction Cycles competitor, Wiggle, is selling them at $8.
Worth stocking up if your a user. Not sure when they'll end the deal but I suspect on previous experience it wont be long.