1. Eating chocolates in the street.
2. The magic of my scanner. You can put three photos on the plate, and understanding this without being told, it scans three separate files. And it squares them off, too.
3. Cropping photos, either with a scalpel or in Photoshop. I love the way it improves the picture; and it makes you notice what's in the photograph - a wheelie bin, some pillars, a distracting headless passer-by in the background, a blurred bottle in the foreground. Next time I have my camera out, I will frame my shots better.