This is pretty basic, but a really good thing to have around if you've ever carried a Zippo lighter (or knockoff, I guess. . .) for any length of time.
Let's get started!
Step 1: Obtain the Necessities
Oh, yeah. You need some lighter fluid as well. . .
Step 2: The Teardown
Dump any remaining contents and rinse everything out thoroughly. Then let it all sit overnight to allow all the water to evaporate out, leaving you with a clean container.
Step 3: Fill Er Up
Once your eye dropper is dry, open the Zippo (preferably) lighter fluid and pour some in. You don't need a ton. This is just for emergency usage. Once you have a sufficient amount inside, reinsert the tip. Screw the cap back on and you're golden!
Store this in your locker at work, the glove compartment of your car or wherever else you might need it and you are all set.
Oh, wait. . .
The caveats. If you are still reading, that is. . .
Step 4: I Know, Really I Do!
I know there are people out there who will freak out about this. I know they mean well and I appreciate their concern for my wellbeing. However, I have researched this a bit and have found nothing that is of great concern. I don't hold any degrees in chemistry, but as far as I can tell, Naphtha (lighter fluid) will not dissolve plastic. As well, leaving this in a hot car should not be an issue either. Yesterday (when it was about 95 °F outside I took infrared measurements of the internal temp of my truck's dashboard. It reached 140 °F. The autoignition temperature for Naphtha, according to it's MSDS is 437 °F. A significant window if you ask me.
I'm sure I'm overlooking something here and I'm equally sure I will be told about it in short order, but I'm okay with that. I don't mind thoughtful criticism. Just be nice, okay? =)
Oh, and don't do any of this ever if you are under 18, etc., etc. And need I even mention not to get this confused with your normal eye drops? Nah, you're smarter than that, right? Right. . . ?
Cheers! For real this time. . .