"I hit the magic number and thought no, I won't buy a sports car, I'll do the Christmas shop."
The mother-of-three said her favourite part of the job was witnessing customer's positivity and enthusiasm. People came in to the shop to get ideas or show Mrs McKinlay pictures of their festive home decorating jobs.
"I love seeing people's creations and I think the shop's something different for Masterton."
The Night Before Christmas is open everyday 9am - 5.30pm until Christmas Eve. During the 12 days of Christmas events it will be open late nights.
Mrs McKinlay describes the prices as "middle of the range" and makes sure she has items for $5 for children wanting to buy their teachers gifts. She said running the store did not feel like working a job.
"People have been so positive and receptive - it's such a buzz."