My kitchen table is covered with a plastic tablecloth, so that is wiped down after every meal. The table itself is of polished wood so every so often, I use furniture polish on the table itself. At Christmas or if I am having a lot of guests, I will put a fabric tablecloth on top of the plastic cloth, so the wooden table top doesn't get damaged.
I also have working surfaces in the kitchen that I use for preparing food. Those are wiped down after every use and every so often, I clean those with a commercial kitchen cleaner spray.