'Dear Crabb,
'Recently I've noticed I receive a lot of correspondence addressed to both of us. Invitations, complaints, tweets decrying our hairstyles, even television viewing suggestions. 'You should watch The Katering Show on YouTube,' emailed my friend Ben the other day. 'You and Crabb will love it' Even an Easter picnic invitation arrived with the disclaimer 'Perhaps Annabel might like to come too' It's as if we've morphed into a sister act, perhaps a little more Laverne and Shirley than Thelma and Louise, but a dynamic duo nonetheless. ' (Introduction)