Brand new premises with customer sevice agent on hand to help you press the right button on the electronic queueing system, which is, admittedly, better than the old one where you had to stand in a 30-person line. I had letters to post "signed for", but no envelopes. Just needed standard sized, boring white envelopes, the kind you buy in packs of 50, nothing fancy. Looked around the sparsely furnished room; no envelopes. I asked the agent if I could buy envelopes in the post office, and she waved at a lonely stand filled to the gunnells with special A3 sized printed boxes and bigger. "No envelopes?" I cry. "Not a one," she replies. "Don't sell them." So I had to waste 20 minutes going to John Lewis.
FFS! Envelopes are hardly extraneous to the general business of the post office, surely?