I use my drive on ramp.
Got an old broken 2 post ramp and converted to 1 post using the drive side.
I then made the base using sheet metal but putting an angle in it so i can drive on.
Other way is man hole covers.
Remove cover stand on ladder and push tractor back and forward while under it.
It depends on what I am doing and the tractor I am addressing. I use ramps, floor Jack and I have a ramp type car lift that is good for some things, but not necessecarly to change blades. The ramp are sometime in the way.
Thew Mojack is the simplest and safest way, and if you don't want to go to the trouble of using the Hand crank you can use the drill attachment to raise the mower, either way only takes minutes.
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I just finished my project,bought two post jacks and set em in concrete.put a 10"x9' I beam on top of them .Bought a hoist dolly and elec. winch at Harbor Freight.Now I can raise the deck of my GH almost straight up to clean it etc.No more ramps and laying down. russ