Tried Gavin's idea of an additional mirror (cheapie from Autobarn) but found difficult to use as extra mirrors were too small (for my ageing eyesight) so ordered a convex mirror from Britpart (yes I know, that mob) and landed and installed inside the week, and the difference is like night and day compared to the standard mirror..only have to remember that objects are closer than they appear, but the field of view is vastly improved