and housekeeping will often require work with collection objects. To prevent accidental damage it is important to establish guidelines for handling to be followed by all individuals in a position to come in contact with the collection. Prior to touching an object, individuals should wash their hands and determine the most appropriate handling procedures based on the medium being handled. Metal, paper, textiles, and other porous materials require the use of cotton gloves to prevent oils from human skin tarnishing, staining, or otherwise damaging the object. Glass, glazed ceramics, and other potentially slippery surfaces should be handled using latex or vinyl gloves to prevent slippage. Prior to handling an object, it is also important to (1) take note of any structural weaknesses so that direct pressure on these areas may be avoided, (2) any clothing or accoutrements with the potential to scratch or catch on the object should be secured, and (3) the object's weight should be considered so that additional help may be requested when handling heavier objects. It is important to examine the types of materials to be used while handling the collection. If collection objects are to be moved, the use of flatbeds, carts, dollies, or pallet lifters may be warranted, with these objects being dubbed structurally sound prior to use. Tote pans or support trays are sometimes used for smaller objects, and liners such as polyethylene foam pads, quilted furniture pads, and acid-free tissue are commonly used as an added layer of protection. When necessary, handlers may also don lab coats, safety glasses, dust masks, or respirators. Display and storage housing Other than smart structural design, one of the major components of display and storage housing is proper selection of materials and collaboration with a mount maker in the creation of suitable display and storage mounts. Especially for long-term solutions, the materials that surround an object must not interfere negatively with the materials that compose the object. Experimentation using Oddy tests is a qualitative way to determine whether specific materials undergo deleterious chemical reactions in the presence of one another. Environmental conditions as explained above are also crucial to housing decisions. Packing and transport Proper packing techniques and materials are the best way to achieve object safety during transit, and – as with nearly every aspect of preventive conservation – these must be determined in response to the particular objects involved. An ideal shipping container not