American Airlines flight attendants say their pay is so low, they fight for airplane meals to save money and sleep in their cars—and they're ready to strike

I will add to what OP said, though, and say that companies will pay for certain types of commutes.

For example, when I used to work at a certain grocery store, some of us were asked one night (I worked the night shift) to go help one of our other stores nearby that had recently been expanded and hadn't yet hired the staff necessary to keep up. We were paid to cover the gas used to get from point A to point B and back to point A (because we needed to clock out at point A).

I've also heard that some construction companies will also pay for commutes to different worksites from the office.

Some companies may also either let you use a company credit card or let you get paid back for expenses incurred on a business trip. (Of course, in both cases, the company would want proof of each transaction.)

Additionally, depending on the circumstances and where you live, you may be able to claim the amount you paid for gas commuting to work on your annual taxes. (Or so I've heard. Take this one with a grain of salt. I've not been attentive enough to the amount of gas I'm using commuting to work to be able to claim it. This is one I heard about from a friend.)