I have Big Bill Ferguson at my casa tearing into my bikes.
He has a wonderful bike table, jacks, tools, lights, fans, and a big lazy boy in his trailer.
With the finest tech equipment at hand, he asked if I had a flat blade shovel. Sure.
To just raise the rear tire/wheel a little bit to line up shocks and mounts perfectly (or axle to swingarm), he slides the shovel under the tire, and voila' you have the perfect long lever with built in fulcrum, requiring little effort; no bending, stooping, lifting, jack fiddling, hernia, or sweating.
Gob smacked, again.

(though a second set of hands is necessary)