Okay. I've been leeching off of your collective knowledge all week and I feel compelled to start sharing some of mine to balance the Karma out a bit.
Fluid film is a multipurpose lubricant/rust inhibitor that can be used for so many things, it staggers the imagination. I use it around the house and garage for a ton of things including many uses on my gear.
I use it on anything that needs to be lubricated and rust/oxidation free including all my knives and just about everything that's metal, including aluminum...it oxidizes too! In fact if I buy a knife, it's not ready to be used IMO until the blade has been given a good rub down with Fluid Film.
I also use it on any leather including my boots, gloves, belts and sheathes as it keeps the leather pliable and weatherproofed.
Anything I have using rubber o-rings (especially if they rub like the o-rings on my mag light) get a light coating of Fluid Film to lube and protect the o-rings...and to get a better seal.
It can be used on just about everything. It can be used to lube and protect firearms, fishing reels, tools, or even undercoating on vehicles.
The stuff is non-toxic, non-sticky, environmentally friendly, safe on plastic and paint, solvent free, doesn't dry out, has an indefinite shelf life, and won't collect dirt and gum stuff up. It was originally designed for the military to keep the ballast tanks of Submarines from rusting...potent stuff!
The aerosol can's are only good for a year but you can buy it in bulk if you need...the fluid itself never goes bad. One aerosol can lasts me a LONG time used sparingly (a little of this stuff goes a long way).
http://www.eurekafluidfilm.com/I'm trying to figure out how I can put some in my BOB as the cans only come in fairly large sizes so I can take some with me anywhere I happen to need some.