Get a stand up gas scooter, like a GoPed, or ScooterX, if your local laws allow it. They go about 20 miles an hour, use very little gas, and are a blast to ride. On top of that, (at least where I live, in Oregon) they require no Drivers License, registration, nor insurance. Just be sixteen or older, have no restrictions from obtaining a license (if you've had your drivers license revoked or suspended, then it is unlawful to ride anything motorized on the street), always wear a helmet, and have proper reflectors and lights in low visibility conditions (night,fog,etc) and you are good to go. You can ride on any 25mph street, or any bike lane on faster streets. They cost around 300-400 dollars new, but you may be able to find one much cheaper, used. I bought my Xracer for 50 bucks, sunk another 60 into it to fix it up (it needed brake pads, cables, etc-fun and easy to work on, too) and it was the best 110 dollars I've ever spent. I love this thing. I have a two mile/five day a week commute to and from work, with some treacherous (even for a car) hills, and my scooter gets me there on time, every time, on about a half a liter of gas. It folds up, and weighs 45lbs so, if you do get a ride, you can put it in the trunk and parking it is easy (I stash mine, and lock it, under our back porch at work). I ride right past cops, and they just smile and wave. I've Been riding it for 6 months, and no problems. Check your laws though, as different states have different restrictions. Good luck and hope it works out for ya! (Also, you may want to look into motor assisted bicycles, too).
If you need any other info, just let me know.