Coming apart at the seams
If your flooring is curling or buckling at the seams or the edges, there are a number of good adhesives that will keep it down. The manufacturers may recommend a certain kind or you can consult a specialty shop. Be sure to clean any dirt and dust from the underside of the linoleum as well as from the exposed sub-floor before spreading out the adhesive. You will probably need to weight the area down after applying the adhesive for at least twenty four hours.
Scratching the surface
It is a good idea to keep a few pieces of extra linoleum material after installation. To fix scratches to the surface and even somewhat deep gashes in your linoleum, you can mix some wood glue with shavings from an old piece of the same stock and apply this paste evenly.
Heels and steels
Marks from high heels, dropped objects, and other sudden contact can be removed with the use of fine-grade (000) steel wool and liquid floor wax. Dip the steel wool into the wax and rub the spot gently, then wipe with a damp cloth.
Help in a box
Many companies offer linoleum repair kits. These usually include repair compound in multiple colors, filler, floor bond, spatula, sandpaper, a couple brushes and instructions. The colors can be mixed to match your particular floor. It is difficult, however, to get a perfect match for unusual varieties. You should also remember when purchasing a kit that linoleum is not the same as vinyl flooring and you should find one made especially for linoleum.
Of course, the best defense is a good offense. Take measures to protect your floor from the get-go. Experts recommend at least one coat of wax prior to regular use of the room. Also, be aware that bright, direct sunlight for prolonged periods of time will fade the coloring of your floor.
More information on linoleum flooring