Well, I decided, a few days later that I did want a yarn winder after all, but I couldn't get back to the shops for a few more days and of course, by that time it was gone.
I then looked online and found they were quite expensive and kicked myself for not buying the one in the charity shop when I had the chance. I spent a couple of days looking at them online and saved one or two to my wish list. I didn't buy one though. Go Me!
On the second day of gazing at them online, I suddenly remembered a box with a yarn swift in, I had been given. It was still in my kitchen and I hadn't bothered with it but I did wonder if it had a yarn winder in the box too. It was midnight when this thought came to me and I was cosy in bed and decided to leave it until the morning.
The next day, I had a look in the box and saw the yarn swift. I pulled it out and underneath was a wooden yarn winder!
I'm glad I didn't buy the one in the charity shop now!