Two natural products from Bioforce-Envirotech:
Outsolve (higher Ph) for carpeting; their Carpet &
Upholstery Cleaner (lower Ph) for use on white or
light-colored upholstery fabrics. Releasit DS (red
label) for encap work NOT to require extraction (via
cotton pads); and Releasit Punch, for encap work to
be extracted via cotton pads. A good rust removed.
A red stain remover (currently trying a Tsunami
product). Goo-Gone (a citrus gel) for removal of
chewing gum, wax, etc. My steam vapor machine is kind
of my spot/stain tool of last resort.