While some people still like to use Comet or Ajax to brush or scrub their doors and baseboards, we found a much easier solution to do this chore. Comet and Ajax are abrasive in conjunction with course sponges and brushes, which eventually will damage your surfaces. One of the best ways to clean baseboards and doors is to use a degreaser. We love Greased Lightning. You can spray it on and simply wipe it off using a microfiber or cotton rag. It works like a miracle, and saves you time and elbow grease.