I bought a Starbucks mug to get the $.50 refills. It paid for itself in about a week, but it is annoying as even though I hand them a starbucks mug and they fill it, a number of the employees will miss the fact it is a "refill" and charge the full price, so you have to remind them it is a refill each and every time. It does not speak well for service or for the intelligence of the average employee there.
Is that how it works? I thought refills were only good for actual "day-of" refills, so you must first buy one at full price (minus $.10 for the cup because of your mug)?