All right, finished BobTheJanitor's sig, thanks for Drubo in IRC for pointing me in the direction of some floor textures (halflife.wad in the halflife folder).
I tried to put a mop in it like you wanted Bob, but it looked too cheezy if I cut/pasted and positioned a pre-existeng picture of a mop, no matter what I did with it. Maybe someday I'll learn to photoshop a mop...