During the Preston meeting the other night I confidently said that there must be a website to convert OS references to postcodes and vice versa easily.

I have since found this one, which is pretty handy as it a) is free, b) seems to work and c) actually is very useful.

You can either enter a 10 digit GR (you need the prefix letters) or click on a Google map. Once it returns the information, simply by a right-click you can open a new tab with the OS1:50000 map and the point indicated on it.

http://gridreferencefinder.com/

Might be useful for those as similarly sad as am I.

Colin.