It's not clever to paint in your nightwear. I was trying to be careful but even so I managed to dunk the hem of my dressing-gown in the paint pot and the dressing gown transferred the colour to my pyjama trousers. You think you're cutting corners but actually you're just creating work for yourself.
The spare room (formerly the rabbit room, formerly the temple, formerly Alice's bedroom) used to be a slatey green. It will now be a perkier peppermint green. The old colour (called "satyr") was from one of those ranges where you mix the colours yourself in a machine- which is great fun and very expensive. The new colour was bought on-line and is very cheap.