Baseboards are difficult to clean with a cloth because imperfections in the wood can snag it and make the cleaning slow. Using a wet rag can take a long time and add too much moisture to the wood. The ideal way to clean baseboards is to use baby wipes. Purchase baby wipes that are alcohol and fragrance free. This keeps the wipes from drying out the baseboards as you clean them. The light moisture in the wipes allows you to clean the baseboards without a lot of wetting and wringing of rags. And, they are disposable, so it's easy to continue to clean all of the baseboards without stopping to wet down more rags. The aloe that is often added to baby wipes helps to condition the wood as you wipe it down. One small box of baby wipes is inexpensive and can be stored long term to clean the baseboards as needed.