Anyone got any good tips on managing workload? I've currently got a backlog of 3,600 emails waiting for my attention (all received within past few weeks), a boss who seems to think I'm his PA (I'm a Head of Dept, he's the MD) and keeps giving me time-consuming data entry tasks to do, one department assistant who has made it clear he's leaving soon and can't be relied on to do what I ask him to do without so much chasing that it would be infinitely quicker to do it myself. Any tips on clearing the backlog and on how not to be the company dogsbody??