This article examines the perceived effectiveness of multilingual upbringing strategies and ways of communication adopted by families where the parents are of two different nationalities. The theoretical introduction presents an overview of the most important issues related to the linguistic development in bi-/multilingual children, debunking common myths and misconceptions surrounding the notions of bi-/multilingualism. The empirical part analyses the results of a survey conducted among parents who raise their children multilingually, looking at the strategies of communication adopted, the perceived effectiveness thereof, and whether the respondents would have changed or improved anything if they had been given a 'second chance.' The results show that the most frequently implemented method is the one parent-one language approach, whose usefulness the majority assessed positively. Other practical conclusions concerning multilingual upbringing are also drawn.