Best Rust-proofing options?

[Irregular F150]

Just don't do what I did last fall. I touched up the a-arms and surrounding area with a spray can of the Wool Wax. About a week later I was doing an oil change and a few other things underneath my truck. I bumped my head twice on the a-arms when I was underneath there, didn't think anything of it. I'm back in the house later and felt something odd on the back of my head. As I'm feeling around, I'm trying to figure out wtf this gooey crap is on the back of my head? After about 10 seconds my lightning-fast brain figured out what it was. At least it washes out with regular shampoo!

Been there…. A couple times lol

 

[Oldfart]

Been there…. A couple times lol

You have that couple of seconds of wondering WHAT IN THE HELL is in my hair??!!

 

[Irregular F150]

You have that couple of seconds of wondering WHAT IN THE HELL is in my hair??!!

Nah i knew right off since its still a short mil cut so idk if thats worse knowing what just happened lol.

 

[Nex]

Gross....