What's something you feel was really worth spending money on?

The book I’m reading recently is about death, titled “We Need To Know About Death”. It covers everything from funerals to cremation. I borrowed this book from Halifax Central Library nearby my house, and I only have two pages left. The most impressive part was about “aquamation. It is a method of cremation where( in which) is combined with warm water and an alkali solution, then heated to 150 degree for eight hours to gently break down the organic tissue. It’s much more eco-friendly than traditional fire cremation.