I remember when I first started blogging (on the private family blog) about Guppy after his birth. I post at least one entry each day, keeping a detailed diary of all the new and mostly cool things that he is doing. We took, oh, maybe on average 10 pictures a day of him. The joke […]

After Guppy reaches one years old, everyone told us that we can switch to cow’s milk instead of formula, once he adjusted to it. Some people also commented that it is much cheaper to use cow’s milk then formula. That seems intuitively true. But, don’t you want to really know?
Let’s work the math by calculating […]