i guess its all down to how people perceive you
now me, i look at times a little scruffy, i dont shave every day ( shock horror, cue the " you give us a bad name posts "
BUT
people trust me, i often get asked to clean the insides and they go out and tell me to just shut the door, this can be little cottages to bigger country houses
i must look trustworthy, i guess by people knowing me ( back to the " i chat too much to my customers, they know where i go on holiday, they know my childrens names etc etc "