Our dog is a year old, she has a terrible habbit pulling on the lead. She is on a little dog but pulls very hard. We have tried various methods to stop her. Taking steps back, standing still, Haulti, dog classes (she behaves at them) but she still pulls.
Does anyone have any suggustions before my arm falls off ?

have you tried doing an about turn when she gets to the end of the lead.  Walk forward, as soon as she pulls and gets to the end of the lead, turn round and walk the other way.  It will take a while but she'll soon learn to keep an eye on you.  I sometimes have to do it a couple of times to remind them but they walk fine after that.

Helen