You could get a discount on gas, from Gas Can Man, or you could try this old fashioned, yet proven technique

Lets look at the pros and cons involved here:
Long lines to wait in vs. moving right up to the front of the line
Paying money for gas vs. taking money, with your gas!
No free snacks vs. all the free stuff you can carry!
No jail time vs. 3 square meals and a cot for who knows how long, courtesy of uncle sam!
When you add it all up, I think the choice is clear, GasMan is o.k., but it can't hold a candle to Smith & Wesson!