Have you considered
cloud it solutions? We work with one of these companies for 4 years. Very comfortably. All information is stored in the cloud. We saved on the purchase of the software, which is necessary for work. Plus, all the information is easy to find. I think this is the best solution to this problem. We tried to keep the information on a flash drive, but they were lost over time became more and more flash cards ... It was very uncomfortable.