In a medication cart apparatus housing a plurality of individual medication bins, the invention provides devices and a method for reducing the risk of nosocomial infection through the use of disposable bin liners. In some applications the bin liners may be color coded for a predetermined use or patient, compartmentalized with dividers, or customized with special labels. The disposable liners may have a tapered form so that multiple liners may be stored in a nested stack to minimize space requirements and to be loaded into a liner dispenser system.