I've never used Google maps in anger before

http://www.noelwatson.com/blog/PermaLink,guid,18877af8-a7b1-4e24-9fe6-1454de247668.aspx

But this evening I have to drive across London and am lucky enought to have a navigator. Ideally I would have a TomTom

http://www.amazon.co.uk/exec/obidos/ASIN/B000BYUN34/qid=1151571296/sr=8-1/ref=pd_ka_1/026-8787779-9446068

but I haven't got round to ordering one yet. Google can be used to plot a course for the navigator to use.

http://maps.google.com/maps?f=d&hl=en&saddr=old+street&daddr=Houndsditch,+City+of+London,+Greater+London,+EC2,+UK&ie=UTF8&t=h&om=1

Pretty useful.