Welcome to the board and the world of cruising.
Yes, the Jewel has laundry facilities on 4 decks, starting with deck 5 I believe. They have about 3 washers and dryers plus an iron and ironing board. There is no charge but you do have to buy the detergent, unless you bring your own. A box of Tide is $1.00 and the directions say it does one load. Actually the washers are a little smaller than standard so a box will do two loads. To us, having the facility was a life saver as we had been traveling for about a week before we even boarded the ship for our 10 day cruise.