It’s simple. A plastic worm bag organizer from Bass Pro Shops and/or a 3×5 recipe card holder from the office supply store. Actually I use them both. I put the CTO’s in the recipe holder because those are the ones we use most and then the more esoteric filters I put in the Bass Pro Worm Folder. I use a label maker to keep them identified on the baggie and with a sharpie on the filter itself. Makes it easy for the assistants to find and put back the gels in the right place. Go ahead get organized.