Debi I'd be inclined to let it go as a one off, but bring it up if it happens again (do you know if it's happened before?). It's definitely not ideal, but if she wasn't feeling on top form and didn't want to ask you to take a day off to look after DS1 or something it's perhaps not a complete disaster?
Meglet but DP is only out the house from 7:30am till 5pm (and does everything once he's home), and T naps for 90 minutes of that time. There's actually not that many hours to fit 2+ hours of Cbeebies in, yet I managed it! 
Carrie I sincerely hope your entire extension isn't that colour 
ILTMIMI I think I need a strategy (involving soft play etc) for knackering T out and generally occupying him. He doesn't really have any outside toys [crap mum emoticon], so doesn't spend as much time as I'd like in the garden. Maybe I'll see if there's anything good in the charity shops for him.
Tell me about your cars, everyone. We really need a new car. We'd like a BIG MPV (like a Ford S-Max, one down from a Galaxy) for the crap supplies we take camping/to the parents/out for the day, as well as 2 car seats and usually my sister as well, but we can't really afford a decent sized MPV, so we're looking more at the Picasso/Focus C-Max/zafira type of thing. Can anyone recommend their car to me?