Small 1000 pound D rings on the wall down low, bolted to the chair rail, and a small one inch ratchet strap around the big chairs when ready to travle.
Simple, no holes in floor to allow gasses and rust to enter.
One thing I want to point out is leverage. No matter how well you bolt a fridge to the floor, it will rip loose in a bad collision.
Better would be to bolt or strap things to the wall also, with the bolts in the floor. This will remove the leverage on the bottom bolts.
"Don't argue with stupid people. They will just drag you down to their level, and beat you up with experience."
Patently waiting for the apocalypses to level the playing field in this physiological game of life commonly known as Civilization