Find a place away from the counter or where you usually work in your business where you can listen and notice what is going on in the shop. Be still and listen. Listen for what you might usually miss because your attention is elsewhere. Listen with fresh ideas, to learn things about your business you may not know or may have forgotten.
While this idea may feel awkward or frivolous, the goal is to overcome store deafness and store blindness that can get in the way of seeing the business as others see it.
A simple comment from a shopper to a friend could open you to an opportunity you might have otherwise missed.
I say be still because most newsagents are busy when in the shop, busy not noticing comments or other things that could reveal opportunities.