While 80% of us also donate unwanted items to charity
A new survey has found 49% of Irish people wear just half of the clothes in their wardrobe on a regular basis.
The study looking into de-cluttering also found that 28% wear just a quarter regularly, while 25% have six or more items in their wardrobe that they have never worn once.
But it revealed that the nation still loves a good clear-out - with 60% of respondents saying they de-clutter at least twice a year.
While 89% claim a clear-out makes them feel either good or brilliant.
It says charity shops are benefiting from this, with 80% of people donating their unwanted items to charity.
However, only 8% shop once per month or more in charity shops, with clothes and books the most popular items to purchase.
The survey was commissioned by communications firm BT Ireland to launch BT Shop for Change in aid of the Irish Cancer Society.
On October 13th, over 110 BT employees will take over nine Irish Cancer Society charity shops in Dublin, Galway and Cork.
The all-island campaign has raised more than €300,000 over the last five years.
Rory Best, Ireland rugby captain and BT Shop for Change ambassador, said: "We've all got clothes that sit unworn year after year or unwanted items lying about the house that others could enjoy.
"BT Shop for Change is the perfect excuse to gather everything up and donate it to Irish Cancer Society who can sell it to raise vital funds for the work that they do."
The money raised will help the Irish Cancer Society fund cancer research projects and provide support for patients and their families.
Paul Hughes, Irish Cancer Society shops manager added: "Almost 40,000 people in Ireland are diagnosed with cancer each year.
Money raised through our charity shops is crucial to helping us fund vital cancer research and provide free support and information to cancer patients and their families."