Right sock, left sock.
Shoes are piled on the porch. Shoes go on left shoe, right shoe.
Going sock, shoe, sock, shoe leaves you vulnerable in emergencies. Ya can't flea danger on foot fully dressed and the other John McClaining it away from danger.
Stairs. Depends on type of stairs and stair coverings.
Wooden stairs - I have mastered a two foot speed shuffle.
Carpeted - sit on my butt and slide down *assuming a required level of non-grossness*
Concrete - right foot first going up. Left foot first going down. Body at an angle, hand on banister.
Stairs with the gap between risers? Fuck that noise, that's how monsters get you. Sprint up or down with one hand calming my tits.