Don't change money at airport, it's a rip off. Don't let guys at baggage touch your bags they will want to charge you. Taxi and rest pretty straight forward. Have fun!
Sometimes the insurance from some 3rd party company isn't really necessary. Just skip it before you feel you've been robbed. Well, suit yourself though.
Ngurah Rai International Airport (DPS), also known as Denpasar International Airport, is located in southern Bali, 13 km south of Denpasar. It is Indonesia's third-busiest international airport.