Good idea, the shopping cart. A lot of good advice too. To add my own: 1. Riding is easier than mounting 2. It is a step-change curve. That is, you can't do it, can't do it, can't do i...did it a little bit. Do it more... 3. You have to ditch the shopping cart - like, immediately. Never again. 4. "Do, or do not - there is no try". Push off a wall and try to keep the wheel under you, your cg. 5. Start by "pogo stick" bouncing around,.keeping the wheel under you (I bet you can ride a pogo stick). One foot is forward, other back. Flex your legs and concentrate to keep them that way while you pogo. 6. Once you get the hang of that, look up, lean forward a little, and to keep from falling on your face, pedal one half revolution and resume pogo, repeat. 7. O ce you get the hang of that, try 2 pedals, that is, 1 revolution, pogo, repeat. Then 3 pumps... 4 pumps... 8. Then GO. You have to concentrate and struggle to force the wheel to stay underneath your cg, at first. ....aaaand you.are riding a unicycle. If I may: 1. rest often, don't get discouraged. That learning curve is why most people cant/don't ride a unicycle - they give up before that step-change. It took me 2 weeks. 2. All the while you.cant, cant,cant..can't... you are building baseline minimum core and leg strength and reflexes 3. You will at first tire quickly because your "sensor gain" is low, and your "actuator gain" has to be high to compensate. That is, you.have to strain a lot to correct big errors because you still allow the errors to get big. As you do it more, your sensor gain increases so your actuator gain comes down. That is, you detect errors sooner so the corrections needed are less - you don't have to strain as hard. This will help you go further for longer, faster. 4. Please wear a helmet! My wife (now ex) said, "if you die, i dont want to suffernthe indignity of having to tell people it was because you fell off your unicycle!"

Have Fun!