Re: From my cold, dead hands!
Normally I drink only strong filter coffee, but at home if I have tea iit's Yorkshire Tea only as I expect my tea to be Steam Loco Crew Strength (tm). That's three bags in the tea can, leave them in, just a splash of milk, let it stew on the shelf over the firebox hole during the next trip = normal strength.
I recall once being asked to make a cafetiere of coffee at my grandparents house. I made it my strength (about 3x their normal strength). They were normally pretty active, even into their late 80s, but after mine they were bouncing off the walls (and no I wasn't asked to make coffee again!).