Dive the ocean, and then go up to cave country to clean your gear.
After a two week trip to Roatan rinsing things off as usual after every dive. The very next Saturday I took all my salt water gear for a 45 minute dive to 50 feet at Ginnie Springs. Ya I know, it sucks to live in North Florida lol. Then hang everything up for Two weeks before I pack it away till my next Roatan or Florida Keys trip.
We're heading down to Puerto Aventuras next week. Our schedule, in this order, is two days of ocean, then one day of cenotes.
Then once home, as pointed out in some of the posts above, a regimented process of soaking/cleaning/drying and storage.