When you buy shoes or snacks, shoe boxes and bags often come with a small package of silica gel desiccant. Our general method of handling is to ignore it or throw it away. But the U.S. "life hacker" website has written an article pointed out that the silica gel desiccant actually has seven great uses, just throw away on too bad. 
　　One of its role, is to "save" the phone dropped in the water. The phone accidentally fell in the water, you usually only know to hurry up to fish up, and then take the hair dryer quickly dry water. In fact, you can also quickly wipe the surface of the phone dry moisture, remove the battery board and memory card, and then take a large bowl, filled with silica gel desiccant particles, the phone (including the battery board and memory card) all put in, so set aside for one night. The next morning, put the phone back together again, reboot, maybe the phone will recover. 
　　The role of the second, is to prevent the digital camera lens condensation dew. After using the digital camera outside in the cold, and then take it indoors, the camera lens will condense a layer of mist. At this time, after removing the camera's battery and memory card, put the camera into the food box with silica gel desiccant particles and set aside for a while, it should be able to prevent the lens from condensing dew. 
　　Another role of silica gel desiccant can also prevent underwater camera failure. Although underwater cameras usually have a special waterproof box, but a little moisture or water infiltration will lead to the camera "scrap". Prior to the waterproof box into two or three packets of silica gel desiccant, you can play a certain preventive effect. 
　　Role four is to make a simple dry bag for the journey. Travel inevitably bump into stormy weather, prepare a zipper-type plastic bag before leaving, put a few packets of silica gel desiccant inside, once the journey encountered heavy rain, immediately put the phone and other important parts and tools into it, you can ensure that "dry and worry-free".
　　In addition, the razor blade contact air oxidation over time, will rust or blunt. Use an airtight container with silica gel desiccant to store razor blades, you can avoid this oxidation, so that the blade more durable.
　　The popular "fake fishing lures" can also be stored in the same way. This kind of fishing "fake bait" used once, will be soaked in water slightly up, put it into a bag or container filled with silica gel desiccant particles, and then take out a while, you can restore the original, used again.
　　Another trick is to prevent the oxidation of maintenance tools. Maintenance personnel always work in the open air, hit the heavy rain and snowstorm and other bad weather, the repair tools in the toolbox will be exposed to the rain and snow. Put two packs of silica gel desiccant in the tool box beforehand, so as to keep the tool box as dry as possible and prevent the tools from oxidizing (i.e. rusting).