I have a digital scale that I got a year or two ago. It's pretty and one of the (many) kitchen items that I could not bear to part with when we moved to the UK.
I go through phases where I weigh things rather randomly - lemons, garlic, books, bags of flour to see if they really do contain 1 kilo...
Recently, I've started weighing portions - pasta, lentils... and I'm astounded to see that the suggested portion sizes on the packages are almost always bang on. And that I am absolutely terrible at guessing the correct amount of pasta needed for two servings.