I was going to mention dog scootering. Looks like you got there already. I have not tried it with a scooter, but I have with a mountain bike. It is harder with a bike because you have to not fall over. But, I haven't had too much trouble. I even put a trailer on my bike and put two kids in the trailer. You can also try rollerblades, but you better be good or you will eat pavement. I have to push a running stroller when I use my blades for better balance, stopping power, and make me heavier so the dog doesn't pull to fast and hard.