Just a word of caution: credit cards accelerate the spending of money. You may not save anything because the ease of purchase results in more items being purchased than may have been needed.

http://home.uchicago.edu/ourminsky/Goal-Gradient_Illusionary_Goal_Progress.pdf

$300,000 @ 2% means you get $6,000 cash back. So if use accelerates and you actually spend $310,000 where before it would have only been $300,000, you get back $6,200 but are out of pocket a net -$3,800. Do you have inventory controls in place to stop unneeded inventory from accumulating?

It will only work if you can maintain tight control on items purchased, such as the old purchase order route. But with a credit card, pre-approval sometimes goes away with post-purchase review taking its place. Not quite the same thing.

We have an American Express Corporate Card that earns points and can be redeemed for cash or travel to conferences, etc. We have yet to utilize any of the points as we're finalizing a policy to the board on redemption.

We only use the card for paying our water bill to the City of Chicago which is roughly $1 MM a year. So while I understand the concerns by Mr. Woods, for us, it was somewhat of a "no brainer" as the cost exists regardless - might as well receive a benefit (besides the water, of course). I think if you use it for major purchases such as water, refuse, etc., it could prove to be beneficial.