Double- check that your passports aren't expired/expiring within 3 months of travel (please check here for more travel information)

Inform your bank that you will be traveling outside of the country to avoid accounts/card being locked

Pack travel plug adapters (here is a great option on Amazon)

Bring sneakers! Lisbon is known for its hilly streets and cobblestone sidewalks, so comfortable walking shoes are highly encouraged

Uber is the best option for easy and affordable transportation in Lisbon. Renting a car is generally not recommended due to Lisbon's narrow, hilly streets and limited parking