I have arrived home from my shift at work to find unexpectedly good results on behalf of Royal Mail!
First Class letters posted = 5 (17/11/09)
First Class letters received = 5 (18/11/09)
I posted 5 more letters today, this time including three typed addresses in window box envelopes.
LB seems to think I should mix things up a bit, and post from a different part of town. To ensure they are indeed going through all the channels a letter from, say, THE HOSPITAL might go through, I am going to take up this suggestion. We are in a different part of town tonight, so it's a good opportunity to achieve this variable.