1. Friends who ask difficult questions to make sure you know what you're doing.
2. Tumble dryers use huge amounts of energy, which seems very wasteful when clothes tend to dry themselves if you hang them up. But when the laundry pile grows so fast I can't keep up, it's very satisfying to put dirty clothes in the machine and later take them out ready for the wardrobe.
3. Completing a task that I have been putting off.