Went to Home Depot and picked up 18 patio pavers for deadlifts. Took a lot of trial-and-error finding the best spot for them. I could not find a part of the dirt in my yard that kept them totally flat and the barbell ended up rolling off each time. Finally I just lifted in the patio. My back has already been feeling bad from driving 200 miles in the past couple of days and continuously moving the equipment from area to area in the yard added to it all, and consequently I couldn't even break 485, then 405 off the mats with a plate underneath (making it a little below the knees, quite high). I'll try again another time.