The idea was taken on-board and the five per cent discounts are now rolling out across Bin Inn's 37 stores.
Mr Shaw is going the extra mile by offering a 10 per cent discount to Te Awamutu customers.
"A 10 per cent discount is more inviting and will make a difference to customers."
He isn't worried about a loss in revenue, saying the discount will attract more customers.
Customers travel from Cambridge, Otorohanga and other Waikato towns to shop at Muz's Bin Inn.
"I really love it - I enjoy meeting lots of different people.
"Pop in and fill up your containers - but make sure to ask us to weigh your containers first.
"We look forward to seeing lots of people with containers to fill."