Boston reputedly has over a quarter million college students.
Looks like somebody's thinking.
Sanitary Door Handle Tissues.
Nice.
Maybe some day they will figure out how to envelope every surface in the bathroom before each use with a sterile sanitary biodegradable ultra thin paper (or vegetable) product. Use toilet. Flush. Wash hands. Dry. When you exit and close the door, a mechanism is tripped which sucks the entire cover down a vacuum/drain in the floor. A new layer is applied (blown in?) Ready for the next user.
Or
They could hire people to clean more often.