1. Cakes with walnuts in them. And the naughtiness of eating cake for breakfast.
2. Memory sticks. Pop them in the USB port, move the files over, and you are ready to go. Wow. How do they get so much on to that little chip?
3. I love reading back my shorthand. I spent nearly a year learning it back in the late 1990s, and though I rarely get to exercise it, it is so useful when I need it. Sometimes a word can puzzle me, but I usually get there in the end. You have to note down the letters you have, and look at the context, and after a bit the answer leaps out.