Why do you use both grams/ml and cups and not just one or the other?

When I first started this blog I had the intention of using only very precise measurements of ingredients. After a while it became clear, that this was so impractical. So I mixed things up at my (and hopefully your) convenience. The only time when I try to stick to gram no matter what is when I post the odd cake recipe. But in cooking a little more or a little less usually doesn’t hurt the recipe (that’s why I like cooking soooo much more than baking).