Me too. I'm conserving far more resources now than when I was younger. Heck, when I was a kid, I never recycled; then I became more and more of a recycler, and now I'm big into "reuse is better than recycling!" I fix when I can, rather than tossing and buying new. I'm waaay more conservative than when I was a kid.
And, like you, I'm ready to go out and kill Nazis, just like my granddad's did.
I actually already have dozens for that sort of thing (as well as beads and other craft supplies, and screws and other construction-type supplies). I’ve been broken for a hot minute (have taken meds most of my life), so I have so many pill bottles. So many.
But maybe I should go ahead and keep them for my farm. I might need real organization. Fuck. Can I hire someone for that..? Fuck.
Nope. Utterly stupid. Pharmacies aren't allowed to refill bottles you bring in, they're often enormous compared to what they contain, but they're also awkwardly small for any around-the-house use. Even if you superglued a bunch together for an improv screws and nails container, they wouldn't hold many.
I'm sure someone's found a use for those, but I think for the most part it's just shit that's going to end up in our brains eventually.
Old pill bottles would work fine for spices! Or... Buy pills in bulk, and then divvy them up into the smaller bottles. Or, if they are the orange bottles, put little LED lights in them for a warm diffuse ambiance.
Small screws/nails/ikea bits, seeds, extra pin-backs or pushpins when the shit container they come in inevitably breaks, weed, q-tips, sewing kits, some vets/humane societies, art AKA makin Injection Molded Robots