As you all know, CC fees take a substantial chunk out of what you net when you have lots of small transactions. Has anyone here had success (or failure) with a cash-only format? Beyond this, for those that do take plastic, how do you set CC policy at your shop: do you suggest or require a minimum amount for a CC transaction? Do you stick to it? Do you have many complaints? and what percentage of your business ends up being cash?
There are a few food establishments in my area that are cash-only, and they have trained their customers to work within this practice. I'm speaking from experience--I know that if I go to restaurant X, I need to stop off at the ATM. Not that big of a deal. Is this doable in a shop, given that a customer generally would not go to an ATM and pay a $2 fee in order to get five bucks to buy a couple of coffees? (On the other hand, shops rely on regulars who are in a better position to adjust/prepare.) And what are the potential drawbacks, aside from lost customers: employee theft? crime (burglars and--yikes--robbers)?