Here in BC our Husky gas stations always run a summer promotion for free gas for life. It's actually $65,000 paid out $2500 yearly. 1 Person wins that.
We also have the chance to win:
Free Fuel For A Month (20 winners of $240 each)
Free Fuel for a Year (4 winners of $2880)
Trip for 2 to the CFL Grey Cup
2 front row NHL tickets (5 winners)
A few trips to the Mayan Riverera
Cold Sucks (Slurpees for a year)
$200 prepaid mastercard (5 winners)
and a whole lot of other small stuff. http://myhusky.ca/fillerup
Basically you just save the receipt, you go online at home and enter in the receipt number. That receipt then gets entered into the main draw in September and then you can play a game to be an instant winner of Gift Certificates and small stuff like that.