Carefully read the warranty and care instructions provided for your flooring. Follow them as much as you can and refer to them if a problem develops.
Ask for post-installation care instructions. You may not be able to mop the floor for 48 hours or you may be given other care instructions depending on the flooring brand.
Don't wet-mop laminate floors because puddles could seep under the baseboards and under your floor, damaging them. Only vacuum and damp or dry-mop them. Use specific cleaners.
Don't ever apply wax or acrylic floor finishes.
Use only the stain-removal products recommended by the flooring manufacturer.
Take common-sense precautions to protect your floor when working with sharp or heavy objects. For example, put down a thick tarp or a carpet scrap to protect your laminate flooring when installing a ceiling fan and using a drill, since you can damage the floor by accidentally dropping it.