waterproofing spray maybe? I used that on a pair of Timbs I had years ago but I dunno if it made a difference. I'm not sure any sort of spray is gonna make trainers last longer than their kinda built in obsolence?
Good tip is go to the posh areas charity shops. Some can have insane prices for second hand things but also some ridiculous brilliant stuff for next to nothing that isn't 'hobo' stuff, just cos people only worn it once.
I read Robert Elms' The Way we Wore. It's a deeply weird book, almost mentally ill. After the final chapter I was seriously considering paying £2000 for a tailor made suit, and wearing two pairs of 501s (one authentically ripped to shreds, over the other) and paying £60 for a white cotton t-shirt to rock the 'Hard Times' look detailed in a 1982 edition of The Face, while listening to Sade and Spandau's 'Chant No 1'.
I'm not a clothes horse but do enjoy getting a new pair of shoes or jacket from time to time, just dawned on me I have not spent a penny on anything this year. with no social outings and no in-person client meetings, there's not much incentive. recently unpacked a bunch of summer clothes from our storage closet and realized I probably won't even wear much of what I already own, so why buy more?
between that, not going out to dinner or traveling to UK on holidays, it's a great way to save money but unfortunately also probably wrecking the economy and causing some of my favorite stores and restaurants to go out business.