Royal Mail frustrations
You've been using one of the newest forms of communication to comment on one of the oldest.
The man who runs the Royal Mail - Allan Leighton - was our big guest on Wednesday's programme.
And some Working Lunch viewers have been - er - stamping their feet in frustration over some of the things he said.
What really annoyed you was his suggestion that the delivery of mail hasn't suffered too much since the first and second deliveries were replaced by one single drop-off.
Robert Sharp was still waiting for his post to arrive while watching Working Lunch (and remember we're on an hour later on Wednesday!). Unfortunately, it's not a novel experience. He wrote, "my post turns up at any time of the day, sometimes as late as 6 pm."
Dick Thomas thought Mr Leighton was glossing over the issue a little. "Allan Leighton states that the mail is a little later to arrive; a few years ago the cut off time for town deliveries was 0930, it is now 1400, how can that be classed as a little later?" he asked.
Marilyn and Derek Spicer emailed, "we could hardly believe what we were hearing from Allan Leighton today. To hear him trying to sell the idea of an improved service is ludicrous. For ordinary postal users it is far from improved."
We had an interesting discussion in the Working Lunch office about the time your post arrives, and if you were really that bothered about it.
Some of the team argued that as the first post hardly ever arrived before people left for work anyway, a further delay would make no practical difference. You would still pick it up when you came back home in the evening.
And if you were not going to work and were likely to be at home for much of the day, the time the post arrived wasn't critical.
But others disagreed. Those of us who live in London or the south east of England might leave home at silly o'clock, but everywhere else the post used to arrive before you drove off to work. That doesn't happen any more, and your emails show it really annoys you.
It all boils down to economics - and value for money.
The early first delivery and later second post costs millions of pounds more each year than just one single delivery. That one change helped drag the Royal Mail from loss to profit.
And the second post wasn't just expensive; the Royal Mail argues it was also ineffective, delivering just a small proportion of the millions of cards and letters we send every week.
So we might feel an emotional attachment to it. We might resent the disruption to our old routines.
But do we really want things to go back to how they were? If we do - we might have to put our money where our mouths are, and pay more for it.