Hi Julie,
You do get luggage allowance, this will be one piece of hold luggage and your hand luggage - the weight of this will be confirmed in you final documents.
There are a couple of rules that you should follow in Slovenia, please see below for some tips taken from the FCO website:
- Carry a copy of your passport at all times as a form of identification.
- All foreign nationals visiting Slovenia must register with the Police within 3 days of arrival or risk paying a fine. If you are staying at a registered hotel or guest house, they will register you when processing your arrival.
- There are heavy on-the-spot fines for jaywalking.
I hope this helps.
Kindest regards,
Monty