What a helpful bunch you all are - many many thanks for the various suggestions. I filed my Cycle to Work application yesterday and am now waiting for the certificate to be issued. Off on holiday with the kids for a fortnight from next week, so probably won't start cycling until after Easter. But your comments have really got me motivated. I'm going to try all your route suggestions over time (and once I build up confidence) to see what works best for me. Will probably start with Surrey Canal Path > Elephant > North-South Superhighway > East-West Superhighway > Canary Wharf to begin with - I know it is longer, but I'm in no rush, nervous about traffic and a bit of extra exercise is good. I am going to book a session with Cycle Confident as soon as I get my bike, and may even join the Bike Train on my first day. Thank you all once again.