you hardly ever notice the packages of silica gel which appear in consumer product packaging from new shoes to vitamin containers to everything in between, other than the hilariously odd warning that you shouldn't eat them. Usually you're too busy tearing away the packaging to get to your "it" purchase, with the silica gel just one more thing to put in the trash can.
Since silica gel absorbs moisture, which makes it particularly effective in storing and shipping food like nuts, it can work very well at sucking the moisture out of objects that you aren't supposed to get wet, like cell phones.
According to a report by CNET, if your phone gets wet, you can remove the battery from it, use a towel to dry off both phone and battery, then put both in an air-tight container with a silica gel package and leave them overnight to absorb any excess moisture that would cause the phone to malfunction.
While silica gel can save one of your most costly investments, it can prolong the life of one of your most common ones - razor blades. No matter how well constructed razor blades are, they will eventually rust over given how much time they spend in water or wet from water. WonderHowTo reports that storing your razors in a sealed plastic container with a silica gel package for company can extend the life of the razors by months or years.