At first glance, a tennis ball on the end of a trailer ball hitch looks like a random accessory, but it serves a surprisingly practical purpose. Tow balls are often greased to reduce friction when ...

There's nothing like scuff marks to ruin a clean floor. Think about it: Even if you dust, vacuum, and mop on a regular schedule, a floor can still look dirty if it's riddled with scuff marks. In fact, ...