A broom that is clean, soft and only used indoors is usually the best laminate floor cleaner, according to About.com. In all cases, the best laminate cleaner is as dry and nonabrasive as possible for that particular situation.
About.com recommends sweeping and using liquid cleaners only if absolutely necessary. When a broom does not clean thoroughly enough, a vacuum attachment can suck up dirt from crevices. In some cases, a dry mop or a dry towel placed over a sponge mop may be necessary. For extremely dirty floors, using plain water in a thoroughly wrung-out mop may be necessary, and a last resort entails adding up to 4 ounces of ammonia to warm water and wringing out the mop. Special laminate floor cleaners are also available but not necessary.