Permanent marker and other permanent stains can damage a floor and make it look bad. Dr. Schutz Universal Stain Remover
, or USR, is a highly effective, quick solution to remove stains that won't come off the floor with any other cleaning method. USR is a powerful stain remover, so be sure to test it somewhere that's not noticeable before applying it in the middle of the floor. USR works on many different surfaces, read the full instructions and call 1877FloorGuy if you've got questions about this flooring maintenance product.
In addition to these solution driven floor care products for vinyl, Dr. Schutz offers similar products for hardwood flooring, like the XtraFill Wood Filler
that provides a great way to fill in gaps in a wood floor during the sand and finish process.