The Slovene version of BlaBlaCar without the stupid name (it just means 'transport' in Slovene, although according to Google translate it does mean 'seduction' in Russian), since time immemorial Prevoz.org has been the preferred method for students and other budget travellers to get around Slovenia faster and cheaper than public transport. And the same applies for those travelling to or from neighbouring countries or any former Yugoslav states - we frequently use it to get between Ljubljana and Belgrade, as the €25-30 cost and five-hour journey time can't be beat. Perhaps the only downside is that the site is only in Slovene, but is no obstacle that Chrome's auto-translate feature can't overcome, and you also need to register or link your Google account to be able to see the contact numbers of the drivers.