Niche knowledge. We had our first house built for us. I learned a ton in the process and lots of “if I ever have a house built again I will remember to...” So

Niche knowledge. We had our first house built for us. I learned a ton in the process and lots of “if I ever have a house built again I will remember to...” Some years later, we decided to move and build another house. Alas, all those things I “learned” were mostly forgotten. So I decided to journal the entire experience and turned it into a blog. Most of the content I just gave away for free. But I also put up a $9 “kit” that provided a printable copy of the blog, additional pictures, my full budget breakdown, spreadsheets I developed to help manage the project, etc. I’ve done nothing to promote the site but have earned in the low thousands over the years.