From my limited experience working as a mechanic and an autobody technician I came away with the idea that the biggest problem with fixing cars is actually getting them where you want them.

 I would guess at least 30% of the average work day at a typical shop involves playing musical cars. Especially in the autobody world. Lets say you get a car in. First you wash it in the wash station, then you tear down and work the body on the rack, then you move it to a place where you aren't afraid to get dust, then back to the wash bay, and then finally to the spray booth. Are you going to hook up the battery each time and start the car? Are you going to get somebody to push it?  Lots of hassle.

Let's take a look at a mechanical garage. The car won't start and it was left to you to get it in the garage to work on it. It is very difficult to push a car by yourself. It sucks. You could get another car to push or pull but you have to ghost ride it.

One idea I came up with was a giant Lazy Susan (those things you spin the dishes at supper on so no one has to pass the meatloaf). That way you could spin the shop and push the vehicle off at the right station. This would be best for autobody shops.

Here is another idea from DJ Products they are from Minnesota. 

They make car and trailer pushers. They look like the things they use to push shopping carts. In my day I had to push those things at Home Depot in the snow up hill with no shoes.

Try and see if your boss will swing for one. Think of all the fun you could have pushing stuff around.

When I was a kid we didn't have children. (Louie Anderson)