How to choose between essere and avere with Passato Prossimo

If you have just started studying Passato Prossimo in Italian then your first questions is: how do I choose between essere and avere?
The bad news is there is no rule that works 100% but in this video you'll find a quick solution.
If you wish to read the full blog and download the cheat sheets click here:
www.parlaitaliano.co.uk/how-t...