I tip depending on service.

Brits don't have a good reputation for tipping and I was reducated in Mexico about this, but I still dont tip as liberally as your average American.
I tip the petrol pump guys..really I dont want to fill up my own car.
the beauty salon
restaurants/cafes

I don't like Service Charge on a bill.... once we got dreadful service at the new Ramada... and we both refused to pay the SC but we were made to. That isn't very fair.