Michael,
I bought a hangar with an apron so steep it took two of us to push the plane up the apron, into the hangar, even with a run at it. Then I discovered the plane could be taxied in with a little power. I took a lot of ribbing about that but my wife liked the fact she could get the plane in and out very easily. Keeps the floor clean too. Just keep everything loose far, far away from the prop. (Note, A guy at our airport tried to taxi out of his hangar and the prop sucked in the door rope... here comes the door! We did not see him again for 6 months, but you would never do that.)
Steve Colwell Legacy