Using this towel dispenser and waste receptacle combo is easy. First, open the door with the key provided for the tumbler lock. Then, load either multi-fold or C-fold paper towels into the dispenser section. When you need a towel, simply pull one out from the dispenser opening. For the waste receptacle, just lift the door and throw your trash inside. The removable, leakproof, molded plastic insert can be taken out for emptying and cleaning. As for maintenance, regularly wipe down the stainless steel surfaces with a mild cleaner to keep the satin finish looking great. Check the towel supply frequently and refill as needed. Also, make sure to empty the waste receptacle before it gets too full to avoid any spills. If you have any issues with the lock or the hinge, don't hesitate to contact the manufacturer for assistance.