It has been almost 20 years since I was last in Milton Keynes; however it was interesting to see that many shops are still in place.
There has almost been a significant degree of building work and the centre has expanded significantly.
Age Concern, a charity for the elderly, takes second-hand furniture (eg from house clearances) and other items, plus gets some new, unused, unsold stuff from stores, and sells it in aid of the charity.
My bedhead was brand-new, donated to them by Argos. Probably a sample or end-of-range.
Also, pictures, books and bric-a-brac.