I'm with Zikoris on minimizing consumption, though I admittedly land on more of a "store one extra" policy for certain products, especially things like toiletries that get used fairly quickly. And +1 to those textile recycling for profit "charity" boxes for when things can't be mended or donated for use as pet bedding at an animal shelter.
I also think it is important when buying new (or new-to-you secondhand items) that you to try ahead and think about the eventually disposal for that item. So for example, if you needed to buy a new robe, you could select a cotton robe over a polyester one, since the cotton one will be biodegradable/compostable and probably also less prone to pilling, and won't be shedding plastic microfibers every time you wash it.