Some were via radio station comps

Back when I was FIFO-ing, my dearly beloved went hard core entering all sorts of competitions,
Radio stations, cinema chains, newspapers, magazines, and gawd knows what else.
Prizes ranged from sample packs of cosmetics, foods [regular and exotic]
clothing,
DVD's / CD's, movie tickets [regular / gold class / premiers] - had to give heaps away as it was hard to be at three cinemas at the same time!
Overnighters / weekenders at hotels all over the place [I used to joke about her developing a compulsion to collect hotel pens]
Flash feeds at restaurants,
But the two awsome-est wins were :
The Kimberly moon festival, with everything laid on including flight over the bungle-bungles and all the local touristy stuff and black tie catered feed at the concert [headline act was John Farnham]
Only pita was I had to hire a suit

The other awesome-est win was the trip to Vancouver,
This was a prize hooked up with a Zac Effron movie promotion - where Zac was a competitive olympic grade sailor who quit sailing after his kid brother died [A bit of a chick flick - but still a decent story]
Everything laid on including spending money, touristy stuff, and a day of sailing little two seater boats between a yacht club on the mainland and Vancouver island - dodging ferries, tankers, container ships and a big grey thing with blokes in white uniforms.
I always thought that sail has right of way, but we got the impression that the blokes in white were going by a different rule book.
Missus was paired up with a young lass from the yacht club, I had our youngest son in my boat - and considering the it had been 30 odd years since I had sailed a boat without wheels I reckon I did pretty good [but not according to soaking wet son]

Last minute entertainment was driving through Vancouver to the airport as the locals were rioting after their team lost to an American team for the Stanley Cup