There is nothing worse than a corroded headset. Sweat is very destructive and the heat and humidity we face for 7 months of the year in Florida can destroy the bike's front end. The headset, and bolts for the handlebars and aero bars are especially at risk.
As a heavy sweater, I've come up with 3 simple ways to attempt to control the damage.
2. Facecloth- Place a face cloth in your back pocket to wipe off your face and under your glasses. They are small and very absorbent.
3. The sweat shield- As a coach, I solve problems. The constant drop of sweat on the headset was a yearly problem. I tried all kinds of solutions. A plastic sheet with channels made with a heat gun keeps the sweat off everything and allows me a clear view of the computer. It is helped with Velcro so can easily be removed and cleaned.
So now you have 3 easy solutions to preserve your bike and control sweat on the road or on the trainer.