Manners is on the top of my list.

Amasing how many people don't hold the door open any longer or the simplest of things like standing when meeting someone, don't start me on table manners.

On thing I fear is becoming a lost art is holding a conversation for more than 5 minutes.

Doffing ones hat when approaching or passing ladies.

As strange as it may sound, Bookman was absolutely correct to call map folding an art.

One of the first lessons that I learned in my basic military training was how to correctly fold an OS map.
It was actually taught as a lesson in the Military Studies Wing (MSW).
The correct way is to fold the map to the correct size of the waterproof map case so that the area that you are in is shown on the map and if you walk into the next area of the map, the face area can be changed with the minimal of effort.

''Thou shalt not commit adultery.''

^^ I was thinking more along the lines of knocking on Mrs Badden's door and asking permission to retrieve the footy rather than jumping the fence and trampling her carnations.

Trust me, you would not have wanted to be the one deflowering Mrs Badden 

Good sir, I gather it was daytime when you went skating.

Ladies don't normally wear a brim hat in the evening.