I use International Priority Mail for shipping. IPM is NOT TRACKED from Italy but is affordable, fast and reliable.
Usually, the shipment takes:
3/4 working days in EUROPE
5/6 working days in the USA and CANADA
7/8 working days in AUSTRALIA and the FAR EAST
I can't control the process and sometimes a single shipment takes more because it takes the wrong way or remains at custom.
In Italy I use SDA Courier that is fast (two working days) and tracked.
The time I need to prepare an order for shipping varies. For details, see individual items.