I find it hard to load and unload plates when the bar is on the ground for deadlift.
When the bar is on the rack, it's easy to put the 45 lbs on and off. But, when the bar is on the ground, it's very hard to hold the bar up with one hand, hold the 45 lbs plate in the other, and bend down and around and put the plate on. Bending to the bottom seems to ruin all my leverage and ability to use my back muscles to hold the plates. (The bars in my gym are nicked enough that the plates don't just slide - you have to work them on.)
When I'm done, getting them off is even harder, esp. as I'm already exhausted. Today I dropped the bar on my foot trying to do this!
What's the best way to get the plates on and off a bar on the ground for deadlifting?