Have you just finished getting your hardwood floors into shape? If so, you obviously want to keep them in good shape and not have them get scuffed up again very quickly. You can protect the floors from most problems by taking a few steps (no pun intended) that reduce marking and increase shine.
Leave Hard-Soled Shoes by the Door
Many homes are now turning into no-shoes homes, where people take their shoes off at the door. If that's not your thing, at least make it a policy to take hard-soled shoes -- especially high heels -- off at the door, and to not put them on until you're at the door, either. You don't have to leave them by the door; you can carry them into your room and store them as usual. But by taking them off once you're inside, you reduce the risk of the soles and heels scratching up the floor.
Pads for Furniture Feet
Place adhesive pads on the bottoms of chair legs and other furniture legs to prevent scratches when the furniture is moved around. Another option is to place furniture that doesn't have legs on pads and area rugs. Anything soft to keep the furniture from digging into the wood and creating divots and lines should you need to move the furniture a bit around.
One thing you'll notice with hardwood floors is that dust shows up more easily now. After all, there's no more carpet pile for it to sink into. Make it a habit of sweeping the floor daily. You can use an electrostatic cloth mop instead of a broom if you want. By cleaning up the dust daily, your floors will continue to shine.
Watch out for Pet Claws
Pet claws, even trimmed ones, can leave marks if the pet starts running around the house. For cats, try using claw sheaths/covers that are meant to stop the cat from sharpening its claws on furniture; the covers should protect the floor just the same. For dogs, train them to either stay out of the areas with floors (if only part of your home has hardwood floors) or train them not to run on the floors.
Hardwood floors can last for a long time if you take care of them. By preventing scuffs and scratches, you allow the floor to stay more resistant to spills and stains -- and you'll have a great-looking floor for years. If you'd like assistance maintaining your wood flooring, companies like Costen Floors Inc would be happy to help!