At home, our latest best purchase has been a ⚽ ball for our daughter, she started practicing months ago and says she loves soccer. And since she has had that ball, it has been a magical situation, she has fun, she practices, she sets herself challenges and that has made her improve quite quickly in her soccer practices.
And apart from that, I would like to add that a good purchase considers that apart from being durable, it is something useful, that is, that you use it constantly. I was very surprised that you called your mentioned item your best purchase, and yet you have only used it a couple of times in a year...