Taxis used to expect tips, black cab drivers often still do.
People used to play this whole unpleasant game of saying "round it up to £30 if you do me a receipt", and the driver providing a fistful of blank receipts in return - almost as if expenses fiddling was less shameful than tipping.
Thankfully, the likes of Uber and mandatory card payment terminals in cabs have ended all that.
I think people also used to tip the postman, newspaper boy and binmen at Christmas.
Oh, yeah. And I remember a columnist in one of the Sunday papers in the late 90s talking about tipping the butcher for the Christmas goose, but I think that was probably a bit of a "look how old-fashioned I am!" affectation even back then.