Shake things up for your business and appoint one of your customers the Newsagent for a Day. Get them into the business, behind the counter and into the back room. Their fresh-eyes insights could let you see opportunities you are missing.
An alternative to this opportunity is awarding the status to one of your team members, probably a junior who is more likely to have challenging ideas.
The idea here is to get you shaken up, to see what you may not see in your day to day work … you know, wood for the trees.