I reuse plastic containers from things like cottage cheese for seed starting. I save the plastic containers that I get seedlings in, plant my seeds in following years, and set those containers into the plastic cottage cheese (or yogurt or...) containers. It helps in the watering process.
One time someone set some plastic bins and lids on the curb. The bins and lids did not fit each other. I use those lids to set my seedlings on, again for watering purposes and ability to move them around more easily. The bins also worked for seed starting, soil amendments and used potting soil that I recondition and reuse.
Flannel sheets can be flimsy and not wear long. (I've figured it out and buy more expensive ones now) I tear the sheets that have ripped up, into about 12 by 12 squares and use them for cleaning.
I shred bills and things that have my name, address and information on. I put this shredded paper into waxed or paper cups and pour melted wax over it to make fire starters.
When it comes to things that I won't reuse, such as all the plastic bottles, etc., I put the bottle into recycling. The hard plastic lids are saved and contributed to schools that are collecting them for bench projects. We contributed to a school who ended up getting 4 benches made from their project. This was pre-COVID, so I am not sure if this is still going on or not. I just keep saving the hard lids. Recycling centers generally don't recycle the hard lids.
During COVID, we learned that there was a bit of a glass shortage. It affected some food manufacturers. Clausen's Pickles was one of those who was affected. We have a local school that collects glass. I often repurpose glass at home, but not always. There are bottles that beverages come in, etc. that I prefer to donate.