I tried a squeegee once-- it scratched the crap outta my negs!! I've never used one since, except on prints. Photo-flo and distilled water is sufficient, and never use anything INCLUDING fingers to wipe water from negs-PERIOD.
I make a "pad" of a cotton graphic arts material called "Webril", soak it in P-flo, dry it off as much as possible, rolling the side of a SS tank over it against a clean surface, then gently swab the roll of film once, end to end, each side. Nothing on sheet film.