PITA clients: How to spot them and manage them

Most freelancers will stumble on a PITA (pain in the ass) client or ten. These clients may quibble over your rates, try and renegotiate your services, query your invoices or encroach on your personal time (and that's just for starters). How can you spot PITA clients - and manage them, if you end up working with one? We share our tips in this week's episode.