Door knob squat
open door, hold door knob/handle with both hands one on each side, bring feet close to the door about hip with apart or slightly wider and feet turned out slightly, lean back with a little weight in the hands, sit back with back straight bringing hips down until thighs are at least parallel to the ground - or as close to ground as you can. Bonus: can also do with an exercise band around thighs right above knees to keep glute med active and working.