Clean all slides, materials, and work area when youre done. Please, be careful with the slides and cover slips. They are made of glass and if broken, you will get cut and you will bleed. When storing the microscope, place the objective lenses on the lowest setting. Use the coarse adjustment to put the nosepiece on its lowest setting. Make sure the light is shut off. These steps of microscope use will keep the unit in good working order as well as make it ready for the next user.