On the subject of rail fares, bought my tickets for tomorrow. The SWT discount offer is still on, so it was cheaper to buy a Southampton Airport-London return and my (full price) single to get to work- I'm not cycling 20 miles, at least not tomorrow- than a Southampton-London single alone would have been.
ETA into Waterloo 2323 (2208 service). Might, just, make the 2138 service (gets in 2249) if we make a few minutes time (big if), but it'll be a close-run thing, takes five or six minutes to get on the road and the northbound platforms are a half-mile ride. Either way, I'll be at the Arch in plenty of time for the safety talk.