I am going to London on holiday in a couple of weeks and plan to buy a Betty while I'm there (or Paddy if the leather is too nice to say no to!). Who do you recommend I go to? I'm not a *great* fan of going into boutiques (but would if you say it's that great!) Selfridges? Harvey Nics? I've never bought a designer purse in the UK before so I'm a bit unsure where to look. Thanks!