Getting my car back from my friend who had borrowed it for the weekend, and finding he has, quite unbidden, cleaned it inside and out. There's even an air freshener in there!

An eclectic list. The concatenation of the last 4 things mentioned here, for instance.

Walking into an office that is airconditioned on a hot day. It's 33°C at 8.30pm, this is NOT on.

[Tuj] Indeed.
[Raak] I saw it twice when Cmdr Hadfield was onboard, thanks to Twitter notifications, and caught it by accident last Saturday night too. In fact, on Saturday, I also saw the Red Arrows fly over my house here in the Netherlands - on their way from a Dutch air show back to their base in my native Lincolnshire. That was an impressive and moving day for skywatching for me.