I'm helping marshall this, but my marshalling is quite early on, so I'll also bring a couple of panniers (oh the shame!), with a good load of tools and some spares (on past experience, mostly inner tubes, and CO[sub]2[/sub] cannisters). I'll have to have a good think over whatever else it may be useful to chuck in.
Amusingly enough, I've actually got some spare Schraeder valved 700C inner tubes, accidentally bought a while back, which I'll grab one or two of.
It should be a fun evening, and my first FNRttC for a while (I've been off of cycling for 11 weeks on medical advice, and more recently for kitten and cat related reasons!)