I have been using the hygen (think that's how its spelled) from Rubbermaid. Ive been using this for a year now. I saw another cleaner using it with a different system but the same mop and pad. goes on super smooth, no mop string streaking.
http://youtu.be/XmW57G6GVPQ
http://youtu.be/XmW57G6GVPQ