Customer Appreciation Folder

Hey everyone, I had an idea I wanted to run past ya. I was thinking of putting together a Customer Appreciation Folder to leave with every customer after cleaning. It would have things like a flyer with all of our services, the customer satisfaction card, and then also special offers from other businesses in the community. I’m thinking of asking my BNI group if anyone would be interested in putting something in it. What do you all think? Worth the money and effort? Any ideas to make it better?