If you happen to drive across the Golden Gate Bridge in San Francisco whether it is to just say you did it, or to see the city from the other side, keep in mind that when you return back into the city, you will have to pay a toll to cross the bridge again.
However, if you are travelling with at least one other companion, make sure you take the HOV lane, as car pooling means you don’t have to pay the $5 (could be more now..). Yes, FREE! But, if you take the wrong toll lane, regardless of how many people are in your car, they will charge you the toll.
So, don’t rush and look for the car pooling sign. It will save you money!