A workman's service cart for storing and transporting a ladder, tools, a carton of fluorescent light cylinders and tools related to maintenance of a fluorescent light fixtures including a base platform with wheels on a bottom side and a superstructure on the top side including a slant panel for extending from the base panel for supporting the ladder and connected to an edge of top panel. The top panel has an aperture for inserting the carton of fluorescent light cylinders on one side of a vertical partition panel. An array of shelves is located on the other side of the partition panel. The cart is built to permit a workman to stand on the top panel and exchange fluorescent light cylinders successively without having to climb down the ladder for each cylinder.