With my left side being paralyzed, I give preferential treatment to my left side for both foot & arm coordination. That way, IF I have to struggle too much, at least my right side will be able to assist with the balance of the process!!! I have to slide the sleeve onto my left arm & then hope the right arm will cooperate on getting into the right sleeve & pulled into position. IF I put my right arm in first, the left arm could not maneuver enough to get itself into the sleeve. Putting socks onto a dead foot or leg has its own set of challenges. A dead leg finds it difficult at best to stay balanced on the right leg while the attempt at getting the sock onto the foot is carried out. IF I allow the right side to fatigue too soon, getting dressed becomes an impossibility. So, left first with right second seems to work out more consistently for me!!!