Who do you tip?

[Cabl]

Um I tipped my mom because I asked her to go buy me some cheaps and have her a dollar for the trip

[abc]

I very rarely tip in UK. When I lived in USA, between 10-20% depending on service. Once I tipped 80% in USA because the service and food was nothing like I have ever tried before.

[SackRace]

always restaurants, barbers, occasionally taxis

[redtom]

I'll only tip when an individual has specifically severed me, for example a hair cut or a taxi and then its normally just rounded up to the nearest 5.
I don't see the point of tipping restaurant staff, service is never normally anything out of the ordinary, plus you never know who's actually taking the tip, when I tip it's meant for the individual if I can't guarantee that then I'm not handing anything extra over.