DIY

https://mistcooling.com/cool-energy-ac-mister.html
 
https://www.kickstarter.com/projects/19381/mistbox-energy-saving-device-proven-to-cut-ac-bill
 
Review of Mistbox with commentary: https://www.allhomerobotics.com/mistbox-review/
 
I guess the idea is to use evaporative cooling to keep HVAC units cool when it's hot?
 
Do these kinds of things work or is there a way to make them work?

I checked out some of the following links, but none of them seem to disclose their exact ingredients...
 
https://purlwax.com/collections/natural-plant-based-ski-snowboard-waxes
 
https://www.mountainflow.com/
 
https://www.dpsskis.com/products/phantomglide
 
https://www.beaverwax.com/
 
...so in a way we have no way of knowing they're actually "ecofriendly". The other possibility is this is basically something simple that's not particularly complicated, so they may be upselling basically something like beeswax.
 
So what would be some ecofriendly options? Carnauba wax? Like a soy candle? Beeswax? No wax?
 
It might require more reapplication than the standard (usually petroleum based) waxes.

I found this interesting, I've never been big in to vinyl records but have some and I guess you can clean them with soap, water, and maybe a brush (or rags).
 
This could be a post for general cleaning discussion as well, or specifically of tech or music items.

https://www.youtube.com/watch?v=vGlDsFAOWXc

So in an effort to think up more sustainable footwear, I stumbled upon a concept of a sandal that goes over shoes. This was being marketed towards "sneakerheads" I think, or people with nice shoes. My use case thought with this design would be, you put on the "sandal" to walk some distance (maybe you need to walk a mile each way to an event) and then you take them off for light walking arount at a destination. This would allow the "sandal sole" to be worn out faster than the shoe itself.
 
I've looked in to the idea of "resoling shoes" but this looks complicated. So I was wondering instead if you could just have a sole that attaches as a sandal (sandal sole) that could be disposed of or reused when it gets used up. Or you could design shoes this way where the sole attaches like a clip in sandal so they're easily replaceable.
 
Redundant concept? Not useful? Got an alternative idea?