cards
Most cards are very easy to understand :: you spend $1 , you get 1 point.
Spend $10,000, get 10,000 points.
For those of us who pay the entire balance off every month, its hard to see how airlines actually make any money from us using the card, but it does create loyalty with the airlines involved.
I applied for an ANZ qantas telstra visa a few years ago, got it and didnt think anything of the points (didnt use them either!) .. then i started flying more, and like most, i had to make the descion of flying ansett or qantas.
After I learned that I'd racked up over 100,000 frequent flyer points, I quickly joined the qantas club, transfered them over and never looked back since.
There is some other posts on this forum about making the most of your frequent flyer points (best routing, adding sectors ect ect) .. best read up on those to maximize your points!