1. Public Transportation - Oslo has a well-connected and efficient public transportation system, including buses, trams, and metro. Purchase an Oslo Pass for unlimited travel on all modes of public transport.

2. Oslo City Bike - Explore the city on two wheels using Oslo's bike-sharing system. Rent a bike from any of the numerous stations and enjoy the dedicated bike lanes and scenic routes.

3. Walk - Oslo is a compact city, making it ideal for exploring on foot. Most major attractions are within walking distance of each other, and the city offers a pedestrian-friendly environment.

4. Ferry - Take advantage of Oslo's beautiful waterfront location by hopping on a ferry. Enjoy a leisurely trip to the Oslo Fjord islands or combine it with public transport for a scenic commute.

5. Taxi - Taxis are widely available in Oslo but can be expensive. Use reputable taxi services or apps for a convenient and comfortable ride, especially during late hours or with heavy luggage.

6. Car Rental - Rent a car if you plan to explore areas outside the city or prefer more independence in your travels. Be aware of parking restrictions and toll roads.

7. Tourist Buses - Join a guided sightseeing tour on a hop-on-hop-off tourist bus to cover the city's main highlights. These buses offer informative commentary and allow you to explore at your own pace.

8. Electric Scooters - Look for electric scooters available for rent in certain areas of Oslo. They offer a fun and eco-friendly way to zip around the city, but remember to follow traffic regulations.

Remember to check local guidelines and transportation schedules for any updates or changes before your visit.