Science materials should be stored in locked facilities if possible, especially materials that are costly and difficult to replace such as magnets, weather instruments, and so on. Storage closets, with plenty of shelf space and drawer space, are wonderful. If available, science materials can be categorized and kept in these closets for easy access. Filing cabinets serve well for storing science materials. Use locking cabinets where possible.
Boxes also work out well for storage space.
Select strong boxes, and try to settle on two, three, or four specific types and sizes. Use boxes that stack well, minimizing space required for them and making it easier to keep them neat and tidy. Apple boxes, for instance, are strong, and if you stay with the same brand they will be uniform in size and they will stack well. They are often free of charge at grocery stores, but offering to pay a small amount for them can greatly increase their availability. Bags have a distinct advantage over small boxes in that they take up only as much space as the items inside them, whereas boxes consume just as much storage space if they are empty as they do if they are full.