On Jan 4, 9:44*pm, wrote:
I'm wondering what, if any, desiccants people use around their tools
and in their tool boxes and stuff like that.

The old-fashioned solution was a block of camphor (like moth
balls, it made an odor and dwindled, but it outgassed and made
a moisture-repelling film on the nearby objects).

Dessicants are good for a short period of time, until they reach
their full moisture saturation (then, they're in need of
regeneration).
Calcium sulphate (white granules) with indicators (probably
of the cobalt chloride type, blue-purple when dry, turning pink
when saturated) is the best solution; bake it dry when it
indicates pink.

Like lots of folk, I operate a dehumidifier; it can remove 50 pints
(per day?
or maybe per week?) and only needs occasional emptying. When my
humidity-indicating weather gizmo shows 60 percent relative humidity,
I empty the dehumidifier (the full-tank condition shuts it down, so
it never operates more than a day or three from when it's emptied).