If you did a forum search for this with my name you'd find that I have mentioned that I did that for years. Ivory, Safeguard and finally Dove soap for 25 or 30 years, along with a brush I bought at Hoffritz for cutlery in '72 or'73. That along with a Gillette "Good News" twin blade disposable was my default shaving method. One ATG pass and called it good.
In '06 I got 'bit by the bug' and started using quality soaps, brushes and razors. Once, just for kicks, after I'd been on the new path for awhile, I grabbed up the old Hoffritz brush and the bar of Dove. All I can say is I hope I never have to do that again. :chapeau