Barlow's work contract wasn't renewed after the 2020 Covid-19 lockdown and she has only been working casual shifts since then.
With a bit of time on her hands, Barlow thought it was a good cause and wanted to help.
"I was finding it really difficult to find work in administration so I had a bit of free time and I thought it was better to be doing something than just sitting at home.
"For the last couple of weeks, we have just been tidying up and making it all sectional and neat."
They are still at their Taupō Quay premises for the time being, but Barlow said they may move to another building with easier access and more foot traffic.
She will meet with Volunteer Whanganui before the shop's opening, hoping to find some assistance so they can do a bit more around the shop and be open for more hours.
Barlow said Bird Rescue was a great cause and anything they could do to raise a bit of extra money would be "awesome".
"I think it is an amazing cause. I didn't realise how many birds come through the Rescue. She does some great work."
Barlow said she was happy that new items to sell were already being donated. When young supporters Ciarān, Rogan and Torrin heard the shop was reopening they had a cleanout and gave a large pile of toys.
The Cheep Shop will start adding items for sale to its new Facebook page when the shop is up and running.
The shop will reopen on Wednesday, November 10, with plans to be open Tuesdays, Wednesdays and Thursdays from 10am to 4pm and Saturdays 10am to 2pm.