HOW TO REUSE SILICA GEL

Put packs in your ammo cans and gun cases/safes to keep dry.
Protect personal papers and important documents by putting some gel in a baggie wherever these are stored.
Keep with photos to spare them from humidity. Tuck a small envelope in the back of frames to protect even the ones hanging on your walls.
Store in camera bags and with film. After snapping photos in cold or wet conditions, silica gel will absorb moisture to keep your lens from fogging or streaking.
Leave a couple packs in your tool box to prevent rusting.
Use the material to dry flowers.
Place with seeds in storage to thwart molding.
Stash some in window sills to banish condensation.
Dry out electronic items such as cell phones and iPods. Remember after the device has gotten wet, do not turn it back on! Pull out the battery and memory card and put the device in a container filled with several packs. Leave it in there at least overnight.
Slow silver tarnishing by using the gel in jewelry boxes and with your silverware.
For items in storage, such as cars or anything prone to mildew. Popular Mechanics offers a good suggestion for use in engines of sitting vehicles.
Tired of buying big bags of pet food only to have it get soggy? Store your kibble in a bin and tape some silica packs to the bottom of the lid.
Cut open the packs and saturate the beads with essential oils to create potpourri.
Use in luggage while traveling.
Tuck some in your pockets. Hide them in your closet in leather goods such as coats and shoes, and even handbags, to help them survive life in storage.
Gather your razor blades and keep in a container with several silica packs to stave off oxidation.
Video tape collections will last much longer with these to help keep them dry.
Litter is now made with silica. With its fantastic absorption qualities, this litter requires fewer changes and sends less mess to the landfill.

And my personal favorite:
Squirrel some away in your car, especially on your dashboard. This will help maintain a clear windshield and leave it less foggy during times of high humidity.