Bringing or renting child safety seats abroad.
Requirements for child car seats vary by country, and rental companies can usually provide one for a daily fee, though availability and quality vary. Bringing your own seat from home, if checked baggage allowances permit, often ensures a better fit for your child and one less thing to worry about at pickup.
Confirm your destination's specific age and height requirements for car seats and boosters in advance, since they don't always match what you're used to at home.