I agree with you Devin,
It is hard to reduce and reuse, because things are just not made that way. I would suggest looking carefully at what you buy, and if it produces too much waste stop buying it. There is a lot I stopped getting because it generated too much waste.
My grandmother always said "We're too poor to buy cheap stuff".
Sometimes I buy an item I need based on the package. For example - powered laundry soap - it comes in large plastic buckets. I have reused the buckets as planters for herbs and medium sized produce. I also screwed the open buckets to the back of the bunny hutches to make nests/beds for them. Since they are square-ish, I was thinking that I could make a veg bin for the root veg and winter squashes I am hoping to get this year. DH is very good at making my crazy ideas work, and he has stopped rolling his eyes.
I had not thought to use feed bags as grow bags, I am going to try that. Currently I fill dog food bags with dog poop...what goes in, must come out. I saw a pinterest item on how to make floor mats out of plastic bags. I am not sure I am that talented. But it looked interesting. I have used the bags, white side up to try and defeat squash vine borers with limited success. Clemson did a study that white plastic mulch confused pests, including SVB.
I like to go to Habitat and Good Will (at least I did last year. 2020 the year we all stayed home.) when I have a need. I find a lot of good stuff to re-purpose. There is a lot of junk too, you have to shift thorough carefully. I got a solid birch floor to ceiling kitchen cabinet for $20. It needed the paint scraped off and be repainted. DH said that I turned a $20 find into a $120 project. It was worth it.
I made garden art from #10 cans, a deep fryer pot and some scrap duct-work.
Food scraps are composted or become animal feed. I buy all cotton clothing - which is getting harder to find - so I can use it all up.
But it is getting harder and harder to use everything all up. I think we are shoving against the tide.
Sarah Cynthia Sylvia Stout, Would not take the garbage out! ~ Where the Sidewalk Ends, Shel Silverstein.