If you are in a humid environment like me- Coastal Virginia- you are going to need to keep moisture OUT of your cameras and lenses as much as possible!
Shooting outside at beaches- to park- to rivers are a pretty normal occurrence- especially during the hot summer months-
Going from inside to outside quickly also increases condensation- which could cause mold build up in lenses- decreasing your ability to resell and make money later!
Anytime you buy shoes, dresses, jeans- pretty much any Amazon package has these silicon packets- put as many in your bag as possible!