By managing your facility efficiently, you can gain a tremendous amount of time, which you can then invest for development, research quality improvement or customer service.
Think about your current management processes: what do you spend most time at? What could be automatized? A management software (commercial, open access or home-made) will manage everything for you: database of users, communication with users and follow-up, booking of equipment and training, billing. All these aspects will be interconnected, traceable and searchable. Additionally, keep records of all your samples, reagents, freezer content and so on in (Excel) databases, including all necessary information and the location of the items.