Cut down on plastics around reheated foods (use Corningware or pyrex instead of Rubbermaid). Stop using non-stick coated cookware. Probably not much you can do about polyester in clothing except lobby your city to filter out the fibers at the water treatment plant.

It involves going against our society’s current norms, but it is not hard to make some significant changes. Buy good quality clothes instead of lots of cheap things that get thrown away. Repair things. It’s not that long ago that a couple would have shared a small freestanding wardrobe which held all of their clothes - it is not hard to manage with a lot less than most people have today.

The most important thing is just to be mindful about what you are consuming, and what you are wasting. How often are you going to actually wear that cute top you’re looking at, and what will happen to it at the end of its life? How can you cut down the amount of disposable items you use? Things like plastic bottles might be recyclable (and that’s only maybe, we don’t really have the facilities to recycle the amount we use) but that only reduces the waste a little, not creating it at all is better.

All these plastics are things that people lived without entirely until not that long ago. It is not that hard to cut down how much we all use considerably, but it will only happen if people are willing to make changes. You might not be able to fix everything alone, but you can make sure you are doing as little as possible to contribute to the problems.