Caribou beats up on Starbucks (400% greater savings!)

I've beaten up on Starbucks before (here and here) for their lackluster effort to get people to use reusable cups. On a recent visit to Caribou Coffee, I encountered this sign in their bathroom.

The sign says: "Think Happy Everyday.  50 cents off any drink with reusable drinkware."

Starbucks offers only a dime for a reusable cup, and they hardly market it. It's posted in the smallest font possible on their wall menus if it appears at all.

Go Caribou!