Steve wrote:

For widespread weeds, wrap a flat-ended rake with old cloth, dip the cloth
in the chemical, and carefully rub it over the weeds. This only works if
you let the weeds get taller that the surrounding plants. It will also
require multiple applications, because you aren't getting the chemical
over the whole plant.

Many years back Ortho made a wax based bar impregnated with
herbicide. You attached it to your mower and dragged it as you cut
the grass. It worked very well but didn't stay on the market very
long. Guess someone had a problem with getting weed killer on their
shoes.