The quick hitch I provided a link for is a Cat 1 hitch. Most modern implements are made to a standard (ASAE) meaning the pins are pretty much the same distance apart on the equipment.
I have a
B7300. You use the top link from your tractor to the pin at the top of the quick hitch (the silver one); the tractor lift arms go to the two pins at the bottom of the quick hitch (again the silver ones). This stays on the tractor.
You just line up the tractor with the implement, flip the two spring loaded handles on top of the quick hitch which open the locks on the lower lift points of the quick hitch (I can reach the levers from the seat of my tractor). Back up till the lower U shaped receivers are lined up with the 2 lift pins on the implement (they don't even have to be level, one will lift the implement level till the other engages using the tractors 3pt lift), once the pins are in the receivers you flip the spring loaded handles. Then like I said move the tractor backward or forward till the top U shape receiver on the quick hitch lines up with the top link pin on the implement (I usually remove the pin to make it easier, again; I can do this from the seat of my tractor). To unhook an implement you just do the reverse.
I can even reach back and adjust the tilt of the implement by turning the toplink from the seat of my tractor (on large tractors most use a hydraulic top link for adjustment).
I have a box blade, 3pt scoop, middle buster/sub soiler and shredder; the only time I have to get off the tractor when hooking up or unhooking an implement is to connect the drive shaft of the shredder.
I did the pulling around, grunting and sweating hooking up implement thing also till I heard about the quick hitch. With the quick hitch it's almost fun changing implements; that should tell you a lot!!
One suggestion I'd make before buying; measure the distance between the base of the lift pins on your implements because as you can see, the bottom distance on the quick hitch is fixed and not adjustable. Like I said, most modern implements use the ASAE standard. Even my older 3pt scoop fits the quick hitch though.