Mx (pronounced "mix") is the one I hear most common.
I'm also partial to Mage (or Mg.). It's a shortening of the Latin word "magister," which means "chief, head, director, teacher." Magister is the root word from which we get "mister" and "mistress"
I like to be sneaky. I dont want staff removing them. So I usually do the underside of the toilet seat (for mens room or unisex bathrooms), or the side of the toilet roll holder that faces the toilet.
Mx (pronounced "mix") is the one I hear most common.
I'm also partial to Mage (or Mg.). It's a shortening of the Latin word "magister," which means "chief, head, director, teacher." Magister is the root word from which we get "mister" and "mistress"