slightly (at a tangent) OT

Domino's in the city(queen st ec4 london) deliver pizza by bike up to 15 at a time.

they use 10 custom bikes and trailers from Pashleys (http://www.pashley.co.uk/products.html) which they figure saves them GBP200 per week in fuel costs alone.

Read London Cyclist magazine Aug/Sep 2005 for a more full report. You may be able to get a copy from office@lcc.org.uk