Just a small technical issue: I just tried to buy the book on http://momtestbook.com/ via Gumroad, and Chrome refuses to autofill the credit card number in the Gumroad widget because the site is http-only. I circumvented that by copying the link from the "Buy on Gumroad" button, but it might be hurting your sales. Consider adding SSL certificate or just make the button click open the Gumroad site.
You're totally right — it's one of those things that's always on the list but never feels like the day's top priority, and then one day you wake up and it's on HN and you feel like a dummy ;). Probably some sort of lesson for me to learn here.
(If anyone else needs it, the direct/secure gumroad PDF link is https://gum.co/momtest, and the paperback/ebook are on Amazon.)
I'd just like to add, and it was important for me, that gumroad also has epub and mobi, not only PDF. I've almost skipped buying the book because mobi was supposedly only available on Amazon. Fortunately I clicked on gumroad just to find out that epub and mobi are also there.
Just a small technical issue: I just tried to buy the book on http://momtestbook.com/ via Gumroad, and Chrome refuses to autofill the credit card number in the Gumroad widget because the site is http-only. I circumvented that by copying the link from the "Buy on Gumroad" button, but it might be hurting your sales. Consider adding SSL certificate or just make the button click open the Gumroad site.