The wiki makes rust on other metal parts seem to be a small problem at most. Some steel wool and some wax for example seems to be a good fix for handlebar rust as well as other parts.
But what about the actual frame? The wiki seems to suggest sanding out the rust on the frame and then new paint job. I don't really wanna mess up the current stock color with a rattlecan job, and I don't think there's any powder coaters around here, or if I could even afford it if so.
A quick and easy fix would seem to be sanding out the rust and going over the small areas with a matching paint marker and some wax, which would be easy if the frame was black or a common blue or something, but I have that gray/silverish puch color frame on a 77 maxi.